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HERNDON, VIRGINIA


Home > North America > United States > Virginia
Elevation: 98 meters     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 - 31 JULY, 2014
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[ °F ]   °C
Weather ElementAverageHighLow
Temperature22.3 °C29 °C (2:52 pm)14.4 °C (2:52 am)
Dewpoint14.2 °C18 °C (11:52 pm)12 °C (10:52 pm)
Humidity64 %94 % (12:29 am)35 % (6:52 pm)
Barometer1019 hPa1020.3 hPa (12:52 pm)1017.9 hPa (4:52 pm)
Wind Speed7.9 km/h16.7 km/h (12:52 pm)
Weather ElementAverage
Visibility16.1 km
Wind DirectionSE (134.2 °)

Weather ElementTotal
Precipitation---
Cooling Degree Days3.4 (Base 18.3)
Growing Degree Days11.7 (Base 10)
Averaged from 24 records on 31 July, 2014
WEATHER CONDITIONS BREAKOUT
WIND DIRECTION BREAKOUT
WEATHER BY HOUR - 31 JULY, 2014
[ °F ]   °C
Local TimeTemperatureDewpointHumidityBarometerVisibilityWind DirectionWind SpeedGust SpeedPrecipitationEventsConditions
12:52 AM16.1 °C13.3 °C83 %1017.9 hPa16.1 kmSouth (190°)5.6 km/hMostly Cloudy
1:52 AM18 °C14 °C77 %1018.6 hPa16.1 kmNW (320°)9.3 km/hOvercast
2:52 AM15 °C14 °C94 %1018.3 hPa16.1 kmCalmScattered Clouds
3:52 AM14.4 °C13.3 °C93 %1017.9 hPa16.1 kmCalmClear
4:52 AM15 °C13.3 °C90 %1018.3 hPa16.1 kmCalmClear
5:52 AM15 °C13 °C88 %1018.6 hPa16.1 kmCalmPartly Cloudy
6:52 AM15.6 °C13.9 °C90 %1019 hPa16.1 kmCalmPartly Cloudy
7:52 AM17.2 °C15 °C87 %1019.3 hPa16.1 kmSSW (210°)5.6 km/hScattered Clouds
8:52 AM19 °C15 °C78 %1020 hPa16.1 kmCalmScattered Clouds
9:52 AM22.2 °C13.9 °C59 %1019.6 hPa16.1 kmCalmPartly Cloudy
10:52 AM25 °C14.4 °C52 %1019.6 hPa16.1 kmVariable7.4 km/hPartly Cloudy
11:52 AM26.1 °C13.9 °C47 %1019.3 hPa16.1 kmSouth (190°)9.3 km/hScattered Clouds
12:52 PM27.2 °C12.8 °C41 %1019 hPa16.1 kmSSW (210°)14.8 km/hScattered Clouds
1:52 PM28.3 °C12.8 °C38 %1019 hPa16.1 kmSSE (160°)14.8 km/hScattered Clouds
2:52 PM28.9 °C12.8 °C37 %1019 hPa16.1 kmSW (220°)16.7 km/hScattered Clouds
3:52 PM27.8 °C12.2 °C38 %1018.6 hPa16.1 kmSouth (190°)14.8 km/hScattered Clouds
4:52 PM28.9 °C12.2 °C35 %1018.3 hPa16.1 kmSouth (190°)14.8 km/hMostly Cloudy
5:52 PM29 °C12 °C35 %1018.6 hPa16.1 kmSW (220°)13 km/hMostly Cloudy
6:52 PM27.8 °C13.9 °C42 %1018.6 hPa16.1 kmSSW (210°)14.8 km/hMostly Cloudy
7:52 PM26 °C15 °C51 %1019.3 hPa16.1 kmSouth (180°)13 km/hMostly Cloudy
8:52 PM24.4 °C17.2 °C64 %1019.6 hPa16.1 kmSouth (190°)9.3 km/hMostly Cloudy
9:52 PM24 °C18 °C69 %1020.3 hPa16.1 kmSouth (180°)9.3 km/hMostly Cloudy
10:52 PM22.8 °C17.2 °C71 %1020 hPa16.1 kmSouth (180°)7.4 km/hScattered Clouds
11:52 PM22.2 °C17.8 °C76 %1020.3 hPa16.1 kmSouth (180°)9.3 km/hScattered Clouds
Hourly data recorded from KIAD, located 0 kilometers away from Herndon, Virginia




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