HERNDON, VIRGINIA

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Elevation: 322 feet Latitude: 38 57N Longitude: 077 27W

WEATHER

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Number of Records: 213,900; Date Range: 1/1/95 - 3/22/16

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WEATHER ALMANAC - APRIL 17, 2014

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[ °C ] °F

Weather Element	Average	High	Low
Temperature	42.6 ^°F	54 ^°F (4:52 pm)	28 ^°F (3:52 am)
Dewpoint	28 ^°F	30.9 ^°F (7:52 pm)	24.1 ^°F (1:52 am)
Humidity	58.9 ^%	85 ^% (3:52 am)	40 ^% (1:52 pm)
Barometer	30.59 ⁱⁿ	30.65 ⁱⁿ (8:52 am)	30.54 ⁱⁿ (4:52 pm)
Wind Speed	6.5 ^mph	12.7 ^mph (6:52 pm)
Wind Gust		19.6 ^mph (10:52 am)

Weather Element	Average
Visibility	10 ^mi
Wind Direction	ENE (79.6 °)

Weather Element	Total
Precipitation	---
Heating Degree Days	24 (Base 65)

Averaged from 23 records on April 17, 2014

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - APRIL 17, 2014

[ °C ] °F

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Conditions
1:52 AM	32.0 ^°F	24.1 ^°F	73 ^%	30.56 ⁱⁿ	10.0 ^mi	West (270°)	4.6 ^mph		Clear
2:52 AM	30.0 ^°F	24.1 ^°F	79 ^%	30.55 ⁱⁿ	10.0 ^mi	Calm			Clear
3:52 AM	28.0 ^°F	24.1 ^°F	85 ^%	30.56 ⁱⁿ	10.0 ^mi	Calm			Clear
4:52 AM	28.0 ^°F	24.1 ^°F	85 ^%	30.57 ⁱⁿ	10.0 ^mi	Calm			Clear
5:52 AM	28.9 ^°F	25.0 ^°F	85 ^%	30.59 ⁱⁿ	10.0 ^mi	Variable	3.5 ^mph		Partly Cloudy
6:52 AM	30.0 ^°F	25.0 ^°F	82 ^%	30.62 ⁱⁿ	10.0 ^mi	Variable	3.5 ^mph		Mostly Cloudy
7:52 AM	36.0 ^°F	26.1 ^°F	67 ^%	30.64 ⁱⁿ	10.0 ^mi	NNE (20°)	3.5 ^mph		Mostly Cloudy
8:52 AM	41.0 ^°F	28.9 ^°F	62 ^%	30.65 ⁱⁿ	10.0 ^mi	ENE (70°)	4.6 ^mph		Scattered Clouds
9:52 AM	45.0 ^°F	28.0 ^°F	52 ^%	30.65 ⁱⁿ	10.0 ^mi	ESE (110°)	6.9 ^mph		Scattered Clouds
10:52 AM	48.0 ^°F	26.1 ^°F	42 ^%	30.65 ⁱⁿ	10.0 ^mi	ESE (110°)	11.5 ^mph	19.6 ^mph	Mostly Cloudy
11:52 AM	48.9 ^°F	27.0 ^°F	43 ^%	30.64 ⁱⁿ	10.0 ^mi	ESE (110°)	6.9 ^mph		Mostly Cloudy
12:52 PM	50.0 ^°F	28.0 ^°F	43 ^%	30.62 ⁱⁿ	10.0 ^mi	Variable	5.8 ^mph		Scattered Clouds
1:52 PM	52.0 ^°F	28.0 ^°F	40 ^%	30.60 ⁱⁿ	10.0 ^mi	SE (140°)	5.8 ^mph	16.1 ^mph	Scattered Clouds
2:52 PM	53.1 ^°F	30.0 ^°F	41 ^%	30.58 ⁱⁿ	10.0 ^mi	Variable	6.9 ^mph		Scattered Clouds
3:52 PM	53.1 ^°F	30.0 ^°F	41 ^%	30.56 ⁱⁿ	10.0 ^mi	ENE (70°)	9.2 ^mph	17.3 ^mph	Mostly Cloudy
4:52 PM	54.0 ^°F	30.0 ^°F	40 ^%	30.54 ⁱⁿ	10.0 ^mi	ESE (120°)	10.4 ^mph		Mostly Cloudy
5:52 PM	53.1 ^°F	30.0 ^°F	41 ^%	30.55 ⁱⁿ	10.0 ^mi	ESE (110°)	11.5 ^mph		Mostly Cloudy
6:52 PM	51.1 ^°F	30.0 ^°F	44 ^%	30.55 ⁱⁿ	10.0 ^mi	ESE (110°)	12.7 ^mph		Scattered Clouds
7:52 PM	48.0 ^°F	30.9 ^°F	52 ^%	30.54 ⁱⁿ	10.0 ^mi	ESE (110°)	11.5 ^mph		Scattered Clouds
8:52 PM	45.0 ^°F	30.9 ^°F	58 ^%	30.55 ⁱⁿ	10.0 ^mi	ESE (110°)	8.1 ^mph		Clear
9:52 PM	43.0 ^°F	30.9 ^°F	62 ^%	30.57 ⁱⁿ	10.0 ^mi	ESE (120°)	9.2 ^mph		Clear
10:52 PM	41.0 ^°F	30.9 ^°F	67 ^%	30.57 ⁱⁿ	10.0 ^mi	ESE (120°)	6.9 ^mph		Clear
11:52 PM	39.9 ^°F	30.9 ^°F	70 ^%	30.59 ⁱⁿ	10.0 ^mi	SE (130°)	6.9 ^mph		Clear

Hourly data recorded from KIAD, located miles away from Herndon, Virginia