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 - OCTOBER 8, 2015

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[ °C ] °F

Weather Element	Average	High	Low
Temperature	63.7 ^°F	75 ^°F (3:52 pm)	52 ^°F (4:52 am)
Dewpoint	54.7 ^°F	57.9 ^°F (5:52 pm)	51.1 ^°F (4:52 am)
Humidity	75.2 ^%	97 ^% (1:52 am)	48 ^% (3:52 pm)
Barometer	30.10 ⁱⁿ	30.16 ⁱⁿ (9:52 am)	30.07 ⁱⁿ (3:52 pm)
Wind Speed	1.8 ^mph	9.2 ^mph (4:52 pm)

Weather Element	Average
Visibility	8.2 ^mi
Wind Direction	ENE (63.8 °)

Weather Element	Total
Precipitation	---
Heating Degree Days	1.5 (Base 65)
Growing Degree Days	13.5 (Base 50)

Averaged from 24 records on October 8, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - OCTOBER 8, 2015

[ °C ] °F

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Conditions
12:52 AM	55.9 ^°F	54.0 ^°F	93 ^%	30.09 ⁱⁿ	8.0 ^mi	Calm		Clear
1:52 AM	54.0 ^°F	53.1 ^°F	97 ^%	30.09 ⁱⁿ	7.0 ^mi	Calm		Clear
2:52 AM	54.0 ^°F	52.0 ^°F	93 ^%	30.09 ⁱⁿ	7.0 ^mi	Calm		Clear
3:52 AM	53.1 ^°F	52.0 ^°F	96 ^%	30.09 ⁱⁿ	6.0 ^mi	Calm		Clear
4:52 AM	52.0 ^°F	51.1 ^°F	97 ^%	30.10 ⁱⁿ	5.0 ^mi	Calm		Clear
5:52 AM	53.1 ^°F	51.1 ^°F	93 ^%	30.11 ⁱⁿ	5.0 ^mi	Calm		Mostly Cloudy
6:52 AM	53.1 ^°F	52.0 ^°F	96 ^%	30.12 ⁱⁿ	6.0 ^mi	Calm		Scattered Clouds
7:52 AM	52.0 ^°F	51.1 ^°F	97 ^%	30.13 ⁱⁿ	6.0 ^mi	Calm		Scattered Clouds
8:52 AM	60.1 ^°F	57.0 ^°F	90 ^%	30.15 ⁱⁿ	7.0 ^mi	Calm		Scattered Clouds
9:52 AM	66.0 ^°F	55.9 ^°F	70 ^%	30.16 ⁱⁿ	9.0 ^mi	Calm		Mostly Cloudy
10:52 AM	70.0 ^°F	57.0 ^°F	63 ^%	30.15 ⁱⁿ	10.0 ^mi	North (350°)	4.6 ^mph	Scattered Clouds
11:52 AM	72.0 ^°F	55.9 ^°F	57 ^%	30.15 ⁱⁿ	10.0 ^mi	Variable	3.5 ^mph	Mostly Cloudy
12:52 PM	73.9 ^°F	55.0 ^°F	52 ^%	30.14 ⁱⁿ	10.0 ^mi	Calm		Mostly Cloudy
1:52 PM	73.9 ^°F	54.0 ^°F	50 ^%	30.12 ⁱⁿ	7.0 ^mi	Calm		Haze
2:52 PM	73.9 ^°F	54.0 ^°F	50 ^%	30.09 ⁱⁿ	8.0 ^mi	Calm		Scattered Clouds
3:52 PM	75.0 ^°F	54.0 ^°F	48 ^%	30.07 ⁱⁿ	10.0 ^mi	Calm		Mostly Cloudy
4:52 PM	75.0 ^°F	57.0 ^°F	53 ^%	30.07 ⁱⁿ	8.0 ^mi	SSW (210°)	9.2 ^mph	Mostly Cloudy
5:52 PM	71.1 ^°F	57.9 ^°F	63 ^%	30.07 ⁱⁿ	8.0 ^mi	South (170°)	5.8 ^mph	Scattered Clouds
6:52 PM	68.0 ^°F	57.9 ^°F	70 ^%	30.07 ⁱⁿ	10.0 ^mi	SSE (150°)	3.5 ^mph	Scattered Clouds
7:52 PM	66.0 ^°F	57.9 ^°F	75 ^%	30.08 ⁱⁿ	10.0 ^mi	SSE (150°)	4.6 ^mph	Scattered Clouds
8:52 PM	64.9 ^°F	57.0 ^°F	75 ^%	30.08 ⁱⁿ	10.0 ^mi	SSE (160°)	3.5 ^mph	Scattered Clouds
9:52 PM	64.9 ^°F	55.9 ^°F	73 ^%	30.08 ⁱⁿ	10.0 ^mi	South (170°)	3.5 ^mph	Mostly Cloudy
10:52 PM	64.9 ^°F	55.0 ^°F	70 ^%	30.07 ⁱⁿ	10.0 ^mi	South (170°)	4.6 ^mph	Mostly Cloudy
11:52 PM	61.0 ^°F	55.9 ^°F	83 ^%	30.07 ⁱⁿ	9.0 ^mi	Calm		Mostly Cloudy

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