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 - DECEMBER 2, 2015

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[ °C ] °F

Weather Element	Average	High	Low
Temperature	51.8 ^°F	55.9 ^°F (2:52 pm)	46.9 ^°F (12:52 am)
Dewpoint	49.9 ^°F	55 ^°F (2:52 pm)	39.9 ^°F (11:52 pm)
Humidity	93.6 ^%	100 ^% (12:52 am)	71 ^% (10:52 pm)
Barometer	29.81 ⁱⁿ	29.95 ⁱⁿ (12:52 am)	29.68 ⁱⁿ (2:52 pm)
Wind Speed	5.8 ^mph	15 ^mph (10:52 pm)
Wind Gust		21.9 ^mph (10:52 pm)

Weather Element	Average
Visibility	4 ^mi
Wind Direction	SSW (189 °)

Weather Element	Total
Precipitation	0.22 ⁱⁿ
Heating Degree Days	13.6 (Base 65)
Growing Degree Days	1.4 (Base 50)

Averaged from 30 records on December 2, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - DECEMBER 2, 2015

[ °C ] °F

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Precipitation	Events	Conditions
12:52 AM	46.9 ^°F	46.9 ^°F	100 ^%	29.95 ⁱⁿ	0.1 ^mi	South (170°)	3.5 ^mph			Fog	Fog
12:59 AM	46.9 ^°F	46.9 ^°F	100 ^%	29.93 ⁱⁿ	0.5 ^mi	SE (140°)	3.5 ^mph			Fog	Fog
1:52 AM	48.0 ^°F	46.9 ^°F	96 ^%	29.93 ⁱⁿ	0.2 ^mi	Calm				Fog	Fog
2:52 AM	48.0 ^°F	46.9 ^°F	96 ^%	29.94 ⁱⁿ	0.2 ^mi	Calm				Fog	Fog
3:52 AM	48.0 ^°F	46.9 ^°F	96 ^%	29.92 ⁱⁿ	0.2 ^mi	Calm				Fog	Fog
4:52 AM	48.0 ^°F	48.0 ^°F	100 ^%	29.90 ⁱⁿ	0.2 ^mi	Calm				Fog	Fog
5:52 AM	48.9 ^°F	46.9 ^°F	93 ^%	29.86 ⁱⁿ	0.1 ^mi	NNE (20°)	8.1 ^mph			Fog	Fog
6:23 AM	48.9 ^°F	48.9 ^°F	100 ^%	29.90 ⁱⁿ	0.2 ^mi	South (180°)	6.9 ^mph		0.00 ⁱⁿ	Fog-Rain	Light Rain
6:52 AM	48.9 ^°F	48.0 ^°F	97 ^%	29.90 ⁱⁿ	0.2 ^mi	SSE (160°)	3.5 ^mph		0.00 ⁱⁿ	Fog	Fog
7:52 AM	48.9 ^°F	48.0 ^°F	97 ^%	29.89 ⁱⁿ	0.1 ^mi	North (350°)	5.8 ^mph		0.01 ⁱⁿ	Fog-Rain	Light Rain
8:52 AM	48.9 ^°F	48.9 ^°F	100 ^%	29.89 ⁱⁿ	0.1 ^mi	Calm			0.01 ⁱⁿ	Fog	Fog
9:52 AM	51.1 ^°F	51.1 ^°F	100 ^%	29.87 ⁱⁿ	0.5 ^mi	SSE (160°)	3.5 ^mph		0.01 ⁱⁿ	Fog-Rain	Light Rain
10:52 AM	52.0 ^°F	52.0 ^°F	100 ^%	29.85 ⁱⁿ	0.5 ^mi	South (170°)	3.5 ^mph		0.06 ⁱⁿ	Fog-Rain	Light Rain
11:52 AM	53.1 ^°F	53.1 ^°F	100 ^%	29.80 ⁱⁿ	0.5 ^mi	South (170°)	4.6 ^mph		0.06 ⁱⁿ	Rain	Light Rain
12:52 PM	54.0 ^°F	53.1 ^°F	97 ^%	29.76 ⁱⁿ	0.5 ^mi	South (170°)	5.8 ^mph		0.05 ⁱⁿ	Rain	Light Rain
1:39 PM	55.0 ^°F	54.0 ^°F	96 ^%	29.71 ⁱⁿ	2.5 ^mi	SSE (160°)	10.4 ^mph		0.01 ⁱⁿ	Rain	Light Rain
1:52 PM	55.0 ^°F	54.0 ^°F	96 ^%	29.73 ⁱⁿ	2.5 ^mi	South (170°)	10.4 ^mph	19.6 ^mph	0.01 ⁱⁿ	Rain	Light Rain
2:52 PM	55.9 ^°F	55.0 ^°F	97 ^%	29.68 ⁱⁿ	2.5 ^mi	SSE (150°)	6.9 ^mph		0.00 ⁱⁿ		Overcast
3:52 PM	55.9 ^°F	55.0 ^°F	97 ^%	29.69 ⁱⁿ	2.5 ^mi	SSW (210°)	5.8 ^mph		0.00 ⁱⁿ		Light Drizzle
4:52 PM	55.9 ^°F	55.0 ^°F	97 ^%	29.70 ⁱⁿ	9.0 ^mi	SSW (210°)	8.1 ^mph		0.00 ⁱⁿ		Overcast
5:16 PM	55.9 ^°F	55.0 ^°F	97 ^%	29.71 ⁱⁿ	7.0 ^mi	West (260°)	10.4 ^mph		0.00 ⁱⁿ	Rain	Light Rain
5:52 PM	54.0 ^°F	53.1 ^°F	97 ^%	29.73 ⁱⁿ	9.0 ^mi	NW (320°)	11.5 ^mph		0.00 ⁱⁿ		Overcast
6:05 PM	54.0 ^°F	53.1 ^°F	97 ^%	29.73 ⁱⁿ	10.0 ^mi	WNW (300°)	8.1 ^mph				Overcast
6:23 PM	55.0 ^°F	53.1 ^°F	93 ^%	29.73 ⁱⁿ	10.0 ^mi	West (260°)	3.5 ^mph				Overcast
6:52 PM	55.9 ^°F	50.0 ^°F	80 ^%	29.75 ⁱⁿ	10.0 ^mi	WNW (290°)	8.1 ^mph				Overcast
7:52 PM	54.0 ^°F	50.0 ^°F	86 ^%	29.75 ⁱⁿ	10.0 ^mi	NNW (330°)	5.8 ^mph				Overcast
8:52 PM	53.1 ^°F	48.0 ^°F	83 ^%	29.76 ⁱⁿ	10.0 ^mi	NNW (330°)	5.8 ^mph				Overcast
9:52 PM	53.1 ^°F	46.0 ^°F	77 ^%	29.76 ⁱⁿ	10.0 ^mi	North (360°)	4.6 ^mph				Overcast
10:52 PM	51.1 ^°F	42.1 ^°F	71 ^%	29.79 ⁱⁿ	10.0 ^mi	NW (320°)	15.0 ^mph	21.9 ^mph			Mostly Cloudy
11:52 PM	48.9 ^°F	39.9 ^°F	71 ^%	29.81 ⁱⁿ	10.0 ^mi	NW (310°)	10.4 ^mph				Overcast

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