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HERNDON, VIRGINIA


Home > North America > United States > Virginia
Elevation: 322 feet     Latitude: 38 57N     Longitude: 077 27W

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Number of Records: 213,900;   Date Range: 1/1/95 - 3/22/16
 
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WEATHER ALMANAC - AUGUST 25, 2015
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[ °C ]   °F
Weather ElementAverageHighLow
Temperature73.4 °F82 °F (3:52 pm)64 °F (4:52 am)
Dewpoint56.8 °F70 °F (12:52 am)52 °F (11:52 pm)
Humidity59 %96 % (12:52 am)37 % (3:52 pm)
Barometer29.92 in29.96 in (10:52 pm)29.88 in (12:52 am)
Wind Speed5 mph9.2 mph (10:52 am)
Weather ElementAverage
Visibility10 mi
Wind DirectionSW (220 °)

Weather ElementTotal
Precipitation---
Cooling Degree Days8 (Base 65)
Growing Degree Days23 (Base 50)
Averaged from 24 records on August 25, 2015
WEATHER CONDITIONS BREAKOUT
WIND DIRECTION BREAKOUT
WEATHER BY HOUR - AUGUST 25, 2015
[ °C ]   °F
Local TimeTemperatureDewpointHumidityBarometerVisibilityWind DirectionWind SpeedGust SpeedPrecipitationEventsConditions
12:52 AM71.1 °F70.0 °F96 %29.88 in10.0 miWNW (290°)3.5 mphScattered Clouds
1:52 AM70.0 °F66.0 °F87 %29.88 in10.0 miCalmPartly Cloudy
2:52 AM66.9 °F63.0 °F87 %29.88 in10.0 miNW (310°)4.6 mphPartly Cloudy
3:52 AM66.9 °F62.1 °F84 %29.88 in10.0 miNW (310°)5.8 mphPartly Cloudy
4:52 AM64.0 °F59.0 °F84 %29.88 in10.0 miWest (280°)3.5 mphScattered Clouds
5:52 AM64.0 °F59.0 °F84 %29.89 in10.0 miNW (310°)5.8 mphScattered Clouds
6:52 AM64.9 °F57.0 °F75 %29.92 in10.0 miNW (320°)4.6 mphScattered Clouds
7:52 AM68.0 °F57.0 °F68 %29.93 in10.0 miNNW (330°)4.6 mphScattered Clouds
8:52 AM71.1 °F57.0 °F61 %29.94 in10.0 miNNW (340°)6.9 mphScattered Clouds
9:52 AM73.9 °F57.9 °F57 %29.95 in10.0 miWNW (300°)8.1 mphPartly Cloudy
10:52 AM75.9 °F53.1 °F45 %29.95 in10.0 miNW (320°)9.2 mphPartly Cloudy
11:52 AM78.1 °F55.0 °F45 %29.94 in10.0 miNNW (330°)6.9 mphPartly Cloudy
12:52 PM79.0 °F54.0 °F42 %29.94 in10.0 miVariable6.9 mphScattered Clouds
1:52 PM81.0 °F54.0 °F39 %29.92 in10.0 miWSW (240°)5.8 mphScattered Clouds
2:52 PM81.0 °F54.0 °F39 %29.91 in10.0 miNW (310°)6.9 mphScattered Clouds
3:52 PM82.0 °F53.1 °F37 %29.89 in10.0 miWest (260°)4.6 mphPartly Cloudy
4:52 PM81.0 °F53.1 °F38 %29.88 in10.0 miCalmPartly Cloudy
5:52 PM82.0 °F54.0 °F38 %29.89 in10.0 miCalmPartly Cloudy
6:52 PM80.1 °F54.0 °F40 %29.90 in10.0 miCalmPartly Cloudy
7:52 PM75.9 °F54.0 °F46 %29.91 in10.0 miNNE (30°)6.9 mphPartly Cloudy
8:52 PM70.0 °F55.9 °F61 %29.93 in10.0 miCalmPartly Cloudy
9:52 PM72.0 °F57.0 °F59 %29.95 in10.0 miNW (310°)6.9 mphScattered Clouds
10:52 PM71.1 °F53.1 °F53 %29.96 in10.0 miNNW (330°)8.1 mphPartly Cloudy
11:52 PM71.1 °F52.0 °F51 %29.96 in10.0 miNorth (360°)9.2 mphPartly Cloudy
Hourly data recorded from KIAD, located miles away from Herndon, Virginia




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