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 - MAY 22, 2015

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[ °C ] °F

Weather Element	Average	High	Low
Temperature	62.1 ^°F	73.9 ^°F (3:52 pm)	48 ^°F (5:52 am)
Dewpoint	42.9 ^°F	50 ^°F (12:24 am)	37.9 ^°F (5:52 pm)
Humidity	53.4 ^%	94 ^% (12:24 am)	27 ^% (5:52 pm)
Barometer	30.09 ⁱⁿ	30.25 ⁱⁿ (11:52 pm)	29.97 ⁱⁿ (12:24 am)
Wind Speed	10.6 ^mph	17.3 ^mph (11:52 am)
Wind Gust		24.2 ^mph (11:52 am)

Weather Element	Average
Visibility	10 ^mi
Wind Direction	W (268.8 °)

Weather Element	Total
Precipitation	---
Heating Degree Days	4.1 (Base 65)
Growing Degree Days	11 (Base 50)

Averaged from 26 records on May 22, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - MAY 22, 2015

[ °C ] °F

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Conditions
12:24 AM	51.8 ^°F	50.0 ^°F	94 ^%	29.97 ⁱⁿ	10.0 ^mi	WNW (300°)	6.9 ^mph		Scattered Clouds
12:52 AM	53.1 ^°F	48.9 ^°F	86 ^%	29.98 ⁱⁿ	10.0 ^mi	NW (310°)	15.0 ^mph		Scattered Clouds
1:52 AM	52.0 ^°F	45.0 ^°F	77 ^%	29.98 ⁱⁿ	10.0 ^mi	NW (320°)	6.9 ^mph		Scattered Clouds
2:52 AM	51.1 ^°F	45.0 ^°F	80 ^%	29.99 ⁱⁿ	10.0 ^mi	WNW (290°)	9.2 ^mph		Partly Cloudy
3:52 AM	51.1 ^°F	44.1 ^°F	77 ^%	30.00 ⁱⁿ	10.0 ^mi	WNW (300°)	6.9 ^mph		Clear
4:52 AM	48.9 ^°F	43.0 ^°F	80 ^%	30.02 ⁱⁿ	10.0 ^mi	Variable	4.6 ^mph		Partly Cloudy
5:52 AM	48.0 ^°F	42.1 ^°F	80 ^%	30.04 ⁱⁿ	10.0 ^mi	Calm			Partly Cloudy
6:52 AM	51.1 ^°F	43.0 ^°F	74 ^%	30.05 ⁱⁿ	10.0 ^mi	NW (310°)	11.5 ^mph		Clear
7:52 AM	54.0 ^°F	43.0 ^°F	66 ^%	30.08 ⁱⁿ	10.0 ^mi	WNW (300°)	9.2 ^mph		Clear
8:52 AM	57.9 ^°F	43.0 ^°F	58 ^%	30.09 ⁱⁿ	10.0 ^mi	NW (310°)	13.8 ^mph		Clear
9:52 AM	61.0 ^°F	42.1 ^°F	50 ^%	30.11 ⁱⁿ	10.0 ^mi	NNW (330°)	13.8 ^mph		Clear
10:52 AM	64.4 ^°F	44.6 ^°F	49 ^%	30.11 ⁱⁿ	10.0 ^mi	West (270°)	10.4 ^mph		Clear
11:52 AM	66.9 ^°F	42.1 ^°F	40 ^%	30.12 ⁱⁿ	10.0 ^mi	WNW (290°)	17.3 ^mph	24.2 ^mph	Partly Cloudy
12:52 PM	69.1 ^°F	42.1 ^°F	38 ^%	30.11 ⁱⁿ	10.0 ^mi	West (270°)	10.4 ^mph	21.9 ^mph	Partly Cloudy
1:52 PM	72.0 ^°F	43.0 ^°F	35 ^%	30.10 ⁱⁿ	10.0 ^mi	WNW (290°)	10.4 ^mph	19.6 ^mph	Partly Cloudy
2:05 PM	71.6 ^°F	42.8 ^°F	35 ^%	30.10 ⁱⁿ	10.0 ^mi	WSW (240°)	9.2 ^mph	17.3 ^mph	Partly Cloudy
2:52 PM	72.0 ^°F	43.0 ^°F	35 ^%	30.09 ⁱⁿ	10.0 ^mi	West (260°)	8.1 ^mph		Partly Cloudy
3:52 PM	73.9 ^°F	43.0 ^°F	33 ^%	30.08 ⁱⁿ	10.0 ^mi	West (280°)	17.3 ^mph	24.2 ^mph	Partly Cloudy
4:52 PM	73.0 ^°F	41.0 ^°F	31 ^%	30.09 ⁱⁿ	10.0 ^mi	West (270°)	8.1 ^mph	19.6 ^mph	Scattered Clouds
5:52 PM	73.9 ^°F	37.9 ^°F	27 ^%	30.09 ⁱⁿ	10.0 ^mi	West (280°)	17.3 ^mph	24.2 ^mph	Scattered Clouds
6:52 PM	73.0 ^°F	39.0 ^°F	29 ^%	30.11 ⁱⁿ	10.0 ^mi	West (270°)	15.0 ^mph	24.2 ^mph	Partly Cloudy
7:52 PM	70.0 ^°F	39.9 ^°F	33 ^%	30.13 ⁱⁿ	10.0 ^mi	WNW (290°)	16.1 ^mph		Partly Cloudy
8:52 PM	66.9 ^°F	41.0 ^°F	39 ^%	30.16 ⁱⁿ	10.0 ^mi	West (280°)	6.9 ^mph		Partly Cloudy
9:52 PM	63.0 ^°F	43.0 ^°F	48 ^%	30.18 ⁱⁿ	10.0 ^mi	WNW (290°)	9.2 ^mph		Partly Cloudy
10:52 PM	62.6 ^°F	44.6 ^°F	52 ^%	30.22 ⁱⁿ	10.0 ^mi	WNW (290°)	10.4 ^mph		Scattered Clouds
11:52 PM	63.0 ^°F	39.9 ^°F	43 ^%	30.25 ⁱⁿ	10.0 ^mi	North (350°)	12.7 ^mph	18.4 ^mph	Scattered Clouds

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