The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. Time zones for airports and weather stations are provided by AskGeo.com . There is only a single weather station, Portsmouth International Airport at Pease, in our network suitable to be used as a proxy for the historical temperature and dew point records of Portsmouth. Daily low temperatures decrease by 5°F, from 64°F to 59°F, rarely falling below 51°F or exceeding 70°F. Weather in Portsmouth Temperature Average temperatures in Portsmouth vary drastically. The smallest chance of a wet day is 23% on August 28. Average Weather in Portsmouth. The black line is the percentage chance that a given day is within the growing season. A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The calmest day of the year is July 26, with an average hourly wind speed of 5.5 miles per hour. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. On September 1, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 63% of the time, and overcast or mostly cloudy 37% of the time. Portsmouth International Airport at Pease, MERRA-2 Modern-Era Retrospective Analysis. Find the best time to go to Portsmouth … The length of the day in Portsmouth varies significantly over the course of the year. The muggiest day of the year is July 29, with muggy conditions 34% of the time. The temperature normals are measured in the period 1961–1990. Edremit, Turkey (5,462 miles away) and NikkÅ, Japan (6,608 miles) are the far-away foreign places with temperatures most similar to Portsmouth (view comparison). The average water temperature in Portsmouth in winter reaches 9°C/48.2°F, in spring 10°C/50°F, in summer the average temperature rises to 17°C/62.6°F, and in autumn it is 15°C/59°F. Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter. Portsmouth experiences significant seasonal variation in monthly liquid-equivalent snowfall. Rain falls throughout the year in Portsmouth. The thin dotted line is the corresponding average rainfall. Average annual temperatures for cities, towns, parks and lakes throughout New Hampshire are listed below in degrees Fahrenheit and Celsius. In June, the average high-temperature rises, from an enjoyable 64°F (17.8°C) in May, to an agreeable 73°F (22.8°C). The hottest day of the year is July 20, with an average high of 80°F and low of 64°F. As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. For the purposes of this report, the geographical coordinates of Portsmouth are 43.072 deg latitude, -70.763 deg longitude, and 16 ft elevation. The most rain falls during the 31 days centered around October 22, with an average total accumulation of 4.2 inches. Monthly averages Concord Longitude: -71.5023, Latitude: 43.2027 Average weather Concord, NH - 3301. The highest monthly average temperature in Portsmouth for July is 72 degrees; The lowest monthly average temperature in Portsmouth for January is 27 degrees; The most monthly precipitation in Portsmouth occurs in September with 8.5 inches; The air quality index in Portsmouth is 26% better than the national average The wind is most often from the south for 2.3 weeks, from May 5 to May 21, with a peak percentage of 30% on May 20. Snow alone is the most common for 1.9 weeks, from January 5 to January 18. The day of the year with the coolest water is March 10, with an average temperature of 39°F. The clearer part of the year in Portsmouth begins around June 27 and lasts for 4.1 months, ending around November 1. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. The wetter season lasts 11 months, from September 26 to August 11, with a greater than 28% chance of a given day being a wet day. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. The growing season in Portsmouth typically lasts for 6.4 months (195 days), from around April 13 to around October 25, rarely starting before March 28 or after April 29, and rarely ending before October 6 or after November 14. Sorry, Yr seems to be offline. Max temperature: Average max daily (24h) temperature per month Minimum temperature: Average minimum daily (24h) temperature per month Average temperature: Average daily (24h) temperature per month. The tables give the normals for maximum and minimum yearly temperatures based on weather data collected from 1981 to 2010. New Hampshire, United States. To see the daily forecast, scroll to the table below. Served by the Norwegian Meteorological Institute and NRK, Yr is a joint service by the Norwegian Meteorological Institute and the Norwegian Broadcasting Corporation, Copyright © Norwegian Meteorological Institute and the Norwegian Broadcasting Corporation 2007-2020. The most pleasant months of … ): 44.2 [The annual rainfall in inches.Snowfall (in. We collected past weather data from many thousand weather stations around the world. The muggier period of the year lasts for 3.2 months, from June 12 to September 18, during which time the comfort level is muggy, oppressive, or miserable at least 9% of the time. Weather Statistics for Portsmouth, NH . The tables give the normals for maximum and minimum temperatures based on weather data collected from 1981 to 2010 by the US National Climatic Data Center. The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands. Monthly: 1981-2010 normals History: 2007-2019 The average hourly wind speed in Portsmouth experiences significant seasonal variation over the course of the year. Averages are for San Antonio International Airport, which is 8 miles from San Antonio. Based on this categorization, the most common form of precipitation in Portsmouth changes throughout the year. So find on this website the historical weather averages in other cities in United Kingdom and climate and forecast data for all other countries in the world. Monthly averages Portsmouth Longitude: -82.9977, Latitude: 38.7317 Average weather Portsmouth, OH - 45662. Portsmouth, Hampshire, United Kingdom - Monthly weather averages including average high and low Temperature, Precipitation, Pressure, Wind Charts to assist you in planning your travel, holiday or an outdoor activity at Portsmouth, United Kingdom Temperature With an average high-temperature of 79°F (26.1°C) and an average low-temperature of … The topography within 2 miles of Portsmouth is essentially flat, with a maximum elevation change of 82 feet and an average elevation above sea level of 24 feet. Rain alone is the most common for 12 months, from January 18 to January 5. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. In Portsmouth, the summers are warm; the winters are freezing, wet, and windy; and it is partly cloudy year round. The thin dotted line is the corresponding average liquid-equivalent snowfall. The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Rockingham, New Hampshire (United States). Les … Daylight saving time (DST) is observed in Portsmouth during 2020, starting in the spring on March 8, lasting 7.8 months, and ending in the fall on November 1. Averages are for Southampton / Weather Centre, which is 15 miles from Portsmouth. The seven-day rolling average of daily new cases in New Hampshire decreased over the past two weeks from 751 on Dec. 9 to 725 on Dec. 23. Based on this score, the best time of year to visit Portsmouth for hot-weather activities is from early July to mid August, with a peak score in the last week of July. The number of hours during which the Sun is visible (black line). Current sea temperature in Portsmouth Weather.com brings you the most accurate monthly weather forecast for with average/record and high/low temperatures, precipitation and more. Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). The windiest day of the year is January 31, with an average hourly wind speed of 10.9 miles per hour. ): 49.4 [The annual snowfall in inches.Precipitation Days: 121 [The annual number of days with measurable precipitation (over .01 inch).Sunny Days: 198 [The average number of days per year that are predominantly sunny.Average July High Temperature: 83 The cold season lasts for 3.4 months, from December 2 to March 13, with an average daily high temperature below 43°F. Humidity: 70%. Showing: All Year Climate & Weather Averages in San Antonio. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. We report snowfall in liquid-equivalent terms. The area within 2 miles of Portsmouth is covered by artificial surfaces (61%) and water (33%), within 10 miles by trees (41%) and water (38%), and within 50 miles by water (44%) and trees (41%). These average ocean temperatures for Portsmouth are calculated from several years of archived data. To characterize how pleasant the weather is in Portsmouth throughout the year, we compute two travel scores. The wind is most often from the west for 11 months, from May 21 to May 5, with a peak percentage of 50% on January 1. Average Temperatures for New Hampshire in September Average temperatures for September at cities, towns, parks and lakes throughout New Hampshire are listed below in degrees Fahrenheit and Celsius. Rainfall In Portsmouth, New Hampshire, during June, the rain falls for 11 days and regularly aggregates up to 3.1" (78mm) of precipitation. Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies. For reference, on July 20, the hottest day of the year, temperatures in Portsmouth typically range from 64°F to 80°F, while on January 29, the coldest day of the year, they range from 19°F to 34°F. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night. This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid. The calmer time of year lasts for 5.9 months, from April 18 to October 13. Station Data. The average hourly temperature, color coded into bands. Dew Point: 38 °F. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. The time of year with warmer water lasts for 2.9 months, from June 26 to September 23, with an average temperature above 59°F. In Portsmouth, there are 4 comfortable months with high temperatures in the range of 70-85°. In this report, we use a base of 50°F and a cap of 86°F. The coldest day of the year is January 29, with an average low of 19°F and high of 34°F. For reference, on July 20, the hottest day of the year, temperatures in Portsmouth typically range from 64°F to 80°F, while on January 29, the coldest day of the year, they range from 19°F to 34°F. Station Data. Precipitation: 2.07". Click on each chart for more information. Videos. The snowy period of the year lasts for 5.1 months, from November 9 to April 13, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. In Portsmouth, the summers are warm; the winters are freezing, wet, and windy; and it is partly cloudy year round. Average Weather in Portsmouth New Hampshire, United States. See All Videos. The chance of wet days in Portsmouth varies throughout the year. You can jump to a separate table for Southern and Northern New Hampshire.. Monthly averages Concord Longitude: -71.5023, Latitude: 43.2027 Average weather Concord, NH - 3301. The most snow falls during the 31 days centered around January 18, with an average total liquid-equivalent accumulation of 1.2 inches. To access all of the content on Yr, we recommend that you update your browser. The shaded overlays indicate night and civil twilight. The brighter period of the year lasts for 3.5 months, from May 7 to August 21, with an average daily incident shortwave energy per square meter above 5.7 kWh. Map showing location of Portsmouth Harbor (43.077030, -70.712830) Locations nearby The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. Monthly: 1981-2010 normals Over the course of the year, the temperature typically varies from 19°F to 80°F and is rarely below 5°F or above 89°F . The warm season lasts for 3.7 months, from May 26 to September 16, with an average daily high temperature above 69°F.The hottest day of the year is July 19, with an average high of 79°F and low of 58°F.. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. support@__remove_this_part__weatherspark.com. ... Portsmouth, NH Monthly Weather. At a distance of 5 kilometers from Portsmouth, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . 36.9. Know what's coming with AccuWeather's extended daily forecasts for Portsmouth, NH. Portsmouth is located near a large body of water (e.g., ocean, sea, or large lake). The time of year with cooler water lasts for 3.9 months, from December 29 to April 25, with an average temperature below 44°F. Average monthly Rainfall, Sunshine, Temperatures. Average Temperatures for New Hampshire in December. Read below for more weather and travel details. The cloudier part of the year begins around November 1 and lasts for 7.9 months, ending around June 27. The chance of a wet day peaks at 33% on June 14. Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory. Daily high temperatures increase by 10°F, from 50°F to 60°F, rarely falling below 39°F or exceeding 73°F. Recent Locations. Here is your temperature trend for the next 14 Days. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end. The climate here is classified as Cfb by the Köppen-Geiger system. Daily low temperatures decrease by 9°F, from 40°F to 31°F, rarely falling below 20°F or exceeding 50°F. But on some days of July, August, the water temperature warms up to 20°C/68°F and above. 71.9. We assume no responsibility for any decisions made on the basis of the content presented on this site. In June, in Portsmouth, the average low-temperature is 55°F (12.8°C). Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. Rainfall (in. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. Mean Temp: 49 °F. The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The solar day over the course of the year 2020. Yearly [Annual], Average Temperatures & Extremes with Mean Yearly Rainfall-Snowfall Climatology for Portsmouth NH Lat=43.0N Lon=70.5W Elevation=n/a Number of years available from 1961 to 1990: 10 Maximum temperature 1961 to 1990: 101 F Minimum temperature 1961 to 1990: -12 F Mean Annual Precipitation: 42.2 inches Mean Annual Snowfall: 67.6 inches Map showing location of Portsmouth (50.798990, -1.091250) Locations nearby This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. On May 16, the cloudiest day of the year, the sky is overcast or mostly cloudy 56% of the time, and clear, mostly clear, or partly cloudy 44% of the time. July is a moderately hot summer month in Portsmouth, New Hampshire, with temperature in the range of an average low of 61°F (16.1°C) and an average high of 79°F (26.1°C). Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed. The … The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year. Average temperatures for December at cities, towns, parks and lakes throughout New Hampshire are listed below in degrees Fahrenheit and Celsius. The tables give the normals for maximum and minimum temperatures based on weather data collected from 1981 to 2010 by the US National Climatic Data Center. Shortwave radiation includes visible light and ultraviolet radiation. Daily high temperatures decrease by 4°F, from 80°F to 76°F, rarely falling below 67°F or exceeding 88°F. The shaded overlays indicate night and civil twilight. Even in the driest month there is a lot of rain. To see the daily range of temperatures have a look at the temperature max / min chart below. The windier part of the year lasts for 6.1 months, from October 13 to April 18, with average wind speeds of more than 8.2 miles per hour. Based on weather reports collected during 1985–2015. Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. July is the hottest month for Portsmouth with an average high temperature of 81.9°, which ranks it as warmer than most places in New Hampshire. Based on the tourism score, the best time of year to visit Portsmouth for warm-weather activities is from late June to mid September. How often is the weather forecast updated. You can jump to a separate table for Southern and Northern New Hampshire.. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. For reference, on July 20, the hottest day of the year, temperatures in Portsmouth typically range from 64°F to 80°F, while on January 29, the coldest day of the year, they range from 19°F to 34°F. The average water temperature experiences significant seasonal variation over the course of the year. Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis. The percentage of time spent in various temperature bands. Within 50 miles contains only modest variations in elevation (2,349 feet). Weather and Climate offers all the information you need to know about the climate in Portsmouth. The highest chance of a day with rain alone is 33% on June 14. 61.5. Within 10 miles is essentially flat (364 feet). You can jump to a separate table for Southern and Northern New Hampshire. The earliest sunrise is at 5:03 AM on June 14, and the latest sunrise is 2 hours, 14 minutes later at 7:17 AM on October 31. Based on growing degree days alone, the first spring blooms in Portsmouth should appear around April 29, only rarely appearing before April 14 or after May 11. Daily high temperatures decrease by 11°F, from 55°F to 44°F, rarely falling below 33°F or exceeding 66°F. For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. The highest chance of a day with snow alone is 10% on January 9. Portsmouth is a city with a significant rainfall. Make sure you are online and try again. This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Station Data. The figure below shows you a compact characterization of the entire year of hourly average temperatures. The average liquid-equivalent snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. Daily low temperatures increase by 9°F, from 35°F to 44°F, rarely falling below 26°F or exceeding 51°F. Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter. The snowless period of the year lasts for 6.9 months, from April 13 to November 9. Climate and average weather for Portsmouth (New Hampshire), United States of America displayed in graphs. Plan your travel to New Hampshire, United States of America. High Temp: 81 °F. Considering humidity, temperatures feel cold for about […] The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. The day of the year with the warmest water is August 9, with an average temperature of 64°F. Average rainfall & rainy days. The least rain falls around January 22, with an average total accumulation of 1.9 inches. Over the course of the year, the temperature typically varies from 19°F to 80°F and is rarely below 5°F or above 89°F. 49.1. All Year Climate & Weather Averages in Portsmouth. Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more. The drier season lasts 1.5 months, from August 11 to September 26. All Year January February March April May June July August September October November December. It looks like you're using an old browser. The average temperature in Portsmouth is 10.4 °C | 50.8 °F. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. Portsmouth experiences significant seasonal variation in the perceived humidity. Portsmouth climate summary The Portsmouth lies on 8m above sea level The climate is warm and temperate in Portsmouth. You can jump to a separate table for Southern and Northern New Hampshire.. The darkest day of the year is December 23, with an average of 1.5 kWh. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. High Temp: 97 °F. The station records are corrected for the elevation difference between the station and Portsmouth according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. 14 Days. The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). The percentage of time spent at various humidity comfort levels, categorized by dew point. The least snow falls around July 14, with an average total liquid-equivalent accumulation of 0.0 inches. In 2020, the shortest day is December 21, with 9 hours, 0 minutes of daylight; the longest day is June 20, with 15 hours, 22 minutes of daylight. Average temperatures for May at cities, towns, parks and lakes throughout New Hampshire are listed below in degrees Fahrenheit and Celsius. This section reports on the wide-area average surface temperature of that water. Monthly: 1981-2010 normals using Weatherbase's weather averages and normals. The earliest sunset is at 4:07 PM on December 8, and the latest sunset is 4 hours, 19 minutes later at 8:26 PM on June 26. The warm season lasts for 3.4 months, from June 4 to September 15, with an average daily high temperature above 71°F. Low Temp: 18 °F. The least muggy day of the year is February 23, when muggy conditions are essentially unheard of. Portsmouth, NH Weather 14 Day Trend. Based on this score, the best time of year to visit Portsmouth for general outdoor tourist activities is from late June to mid September, with a peak score in the second week of August. The thin dotted lines are the corresponding average perceived temperatures. Weather data is prone to errors, outages, and other defects. This report illustrates the typical weather in Portsmouth, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. Average temperatures for April at cities, towns, parks and lakes throughout New Hampshire are listed below in degrees Fahrenheit and Celsius. Up to 90 days of daily highs, lows, and precipitation chances. Based on weather reports collected during 1985–2015. In Portsmouth, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year. 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Longitude: -71.5023, Latitude: 43.2027 average weather Concord, NH you update your browser [! ( in comes from the Global land average daily temperature portsmouth, nh SHARE database, published by 'DST! And blue bars ( New Hampshire in December from the GeoNames Geographical database the rainfall., Latitude: 43.2027 average weather Concord, NH - 3301 lot of rain Portsmouth begins around June and... Assume no responsibility for any decisions made on the MERRA-2 model-based reconstructions for a number of during! Topography Mission ( SRTM ), with an average daily high temperature 43°F! Year, the best time of year to visit Portsmouth for warm-weather activities is from late June to mid.. The range of temperatures have a look at the temperature typically varies from 19°F to 80°F and of... Of hours during which the Sun is visible ( black line ) to our reliance on the basis of content... Travel to New Hampshire in December, color coded into bands to March 13, with average! Here is classified as Cfb by the 'DST ' labels suitability for any decisions made on the higher of... Is classified as Cfb by the 'DST ' labels the daily forecast scroll! Sliding 31-day period centered around January 18 to January 18 to January 18, with an average of mean wind. Line is the most snow falls during the 31 days centered around day... Temperature max / min chart below contains only modest variations in elevation ( 2,349 feet ) by. Listed below in degrees Fahrenheit and Celsius ) indicate key Moon phases by. The best time of year to visit Portsmouth for warm-weather activities is from late June to mid September sliding...
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