The most rain falls during the 31 days centered around May 17, with an average total accumulation of 3.6 inches. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. Over the course of the year, the temperature typically varies from 26°F to 88°F and is rarely below 12°F or above 96°F. 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 stations contributing to this reconstruction are: Leesburg Executive Airport (62%, 7 kilometers, northwest); Washington Dulles International Airport (30%, 13 kilometers, south); and Montgomery County Airpark (8%, 31 kilometers, northeast). 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. The day of the year with the coolest water is February 5, with an average temperature of 36°F. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. 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. Daylight saving time (DST) is observed in Ashburn during 2020, starting in the spring on March 8, lasting 7.8 months, and ending in the fall on November 1. This report illustrates the typical weather in Ashburn, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. We report snowfall in liquid-equivalent terms. In Ashburn, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year. Ashburn Weather Forecasts. The time of year with warmer water lasts for 3.3 months, from June 22 to October 1, with an average temperature above 68°F. For each station, the records are corrected for the elevation difference between that station and Ashburn according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. 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 average hourly wind speed in Ashburn experiences significant seasonal variation over the course of the year. Ashburn is located near a large body of water (e.g., ocean, sea, or large lake). 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 coldest day of the year is January 30, with an average low of 26°F and high of 43°F. Be prepared with the most accurate 10-day forecast for Ashburn, VA with highs, lows, chance of precipitation from The Weather Channel and Weather.com Ashburn experiences some seasonal variation in monthly liquid-equivalent snowfall. From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night. This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The cloudier part of the year begins around November 11 and lasts for 7.6 months, ending around June 30. °F. 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. We assume no responsibility for any decisions made on the basis of the content presented on this site. The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. Within 10 miles contains only modest variations in elevation (696 feet). Maximum temperature yesterday: 61 °F (at 1:52 pm)Minimum temperature yesterday: 46 °F (at 6:52 am)Average temperature yesterday: 53 °F, Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records, © Time and Date AS 1995–2020. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Ashburn area. Lower dew points feel drier and higher dew points feel more humid. The earliest sunrise is at 5:43 AM on June 13, and the latest sunrise is 1 hour, 53 minutes later at 7:36 AM on October 31. Weather by CustomWeather, © 2020. The brighter period of the year lasts for 3.9 months, from April 27 to August 22, with an average daily incident shortwave energy per square meter above 6.0 kWh. The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year. 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 hot season lasts for 3.6 months, from May 28 to September 15, with an average daily high temperature above 79°F. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands. The time of year with cooler water lasts for 3.4 months, from December 21 to April 3, with an average temperature below 44°F. 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. In this report, we use a base of 50°F and a cap of 86°F. The figure below presents a compact representation of key lunar data for 2020. 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. Ashburn experiences some seasonal variation in monthly rainfall. The least muggy day of the year is February 19, when muggy conditions are essentially unheard of. Ashburn experiences extreme seasonal variation in the perceived humidity. Click on each chart for more information. 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 calmer time of year lasts for 5.6 months, from May 8 to October 27. In 2020, the shortest day is December 21, with 9 hours, 25 minutes of daylight; the longest day is June 20, with 14 hours, 55 minutes of daylight.

ashburn, va weather

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