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 - FEBRUARY 25, 2015

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[ °C ] °F

Weather Element	Average	High	Low
Temperature	25.1 ^°F	37.9 ^°F (2:52 pm)	(9:52 am)
Dewpoint	12.6 ^°F	30.2 ^°F (9:59 am)	(7:00 pm)
Humidity	60.5 ^%	93 ^% (9:59 am)	37 ^% (5:52 pm)
Barometer	29.92 ⁱⁿ	30.00 ⁱⁿ (10:52 pm)	29.81 ⁱⁿ (1:52 am)
Wind Speed	3.9 ^mph	10.4 ^mph (11:52 am)

Weather Element	Average
Visibility	10 ^mi
Wind Direction	ESE (108.9 °)

Weather Element	Total
Precipitation	---
Heating Degree Days	46.1 (Base 65)

Averaged from 27 records on February 25, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - FEBRUARY 25, 2015

[ °C ] °F

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Conditions
12:52 AM	16.0 ^°F	6.1 ^°F	65 ^%	29.82 ⁱⁿ	10.0 ^mi	North		Clear
1:52 AM	10.9 ^°F	5.0 ^°F	77 ^%	29.81 ⁱⁿ	10.0 ^mi	South (190°)	6.9 ^mph	Clear
2:52 AM	9.0 ^°F	3.0 ^°F	77 ^%	29.81 ⁱⁿ	10.0 ^mi	South (190°)	6.9 ^mph	Clear
3:52 AM	10.4 ^°F	5.0 ^°F	79 ^%	29.81 ⁱⁿ	10.0 ^mi	NNW (340°)	4.6 ^mph	Overcast
4:52 AM	9.0 ^°F	3.9 ^°F	80 ^%	29.86 ⁱⁿ	10.0 ^mi	North		Clear
5:52 AM	8.1 ^°F	3.0 ^°F	80 ^%	29.88 ⁱⁿ	10.0 ^mi	North		Clear
6:52 AM	10.9 ^°F	5.0 ^°F	77 ^%	29.89 ⁱⁿ	10.0 ^mi	South (180°)	5.8 ^mph	Scattered Clouds
7:52 AM	12.9 ^°F	7.0 ^°F	77 ^%	29.91 ⁱⁿ	10.0 ^mi	South (180°)	3.5 ^mph	Mostly Cloudy
8:52 AM	16.0 ^°F	9.0 ^°F	74 ^%	29.94 ⁱⁿ	10.0 ^mi	Calm		Mostly Cloudy
9:52 AM	0.0 ^°F	0.0 ^°F		29.93 ⁱⁿ	10.0 ^mi	Calm		Mostly Cloudy
9:59 AM	32.0 ^°F	30.2 ^°F	93 ^%	29.93 ⁱⁿ	10.0 ^mi	Calm		Mostly Cloudy
10:26 AM	28.4 ^°F	15.8 ^°F	59 ^%	29.94 ⁱⁿ	10.0 ^mi	Calm		Mostly Cloudy
10:52 AM	28.0 ^°F	15.1 ^°F	58 ^%	29.97 ⁱⁿ	10.0 ^mi	SSW (200°)	3.5 ^mph	Mostly Cloudy
11:52 AM	33.1 ^°F	15.1 ^°F	48 ^%	29.99 ⁱⁿ	10.0 ^mi	SSW (210°)	10.4 ^mph	Mostly Cloudy
12:52 PM	37.0 ^°F	16.0 ^°F	42 ^%	29.96 ⁱⁿ	10.0 ^mi	WSW (250°)	5.8 ^mph	Mostly Cloudy
1:52 PM	37.0 ^°F	15.1 ^°F	41 ^%	29.94 ⁱⁿ	10.0 ^mi	WSW (250°)	8.1 ^mph	Mostly Cloudy
2:52 PM	37.9 ^°F	15.1 ^°F	39 ^%	29.94 ⁱⁿ		Variable	3.5 ^mph
3:52 PM	37.4 ^°F	15.8 ^°F	41 ^%	29.91 ⁱⁿ	10.0 ^mi	SW (230°)	5.8 ^mph	Mostly Cloudy
4:52 PM	37.0 ^°F	16.0 ^°F	42 ^%	29.93 ⁱⁿ	10.0 ^mi	South (180°)	5.8 ^mph	Overcast
5:52 PM	37.0 ^°F	12.9 ^°F	37 ^%	29.94 ⁱⁿ	10.0 ^mi	Calm		Overcast
6:52 PM	33.1 ^°F	18.0 ^°F	54 ^%	29.97 ⁱⁿ	10.0 ^mi	Calm		Overcast
7:52 PM	32.0 ^°F	19.0 ^°F	59 ^%	29.96 ⁱⁿ	10.0 ^mi	East (90°)	4.6 ^mph	Overcast
8:52 PM	30.9 ^°F	19.9 ^°F	64 ^%	29.97 ⁱⁿ	10.0 ^mi	Calm		Overcast
9:52 PM	32.0 ^°F	17.1 ^°F	54 ^%	29.94 ⁱⁿ	10.0 ^mi	ESE (120°)	5.8 ^mph	Overcast
10:48 PM	33.8 ^°F	17.6 ^°F	52 ^%	29.99 ⁱⁿ	10.0 ^mi	SSE (160°)	4.6 ^mph	Overcast
10:52 PM	34.0 ^°F	17.1 ^°F	50 ^%	30.00 ⁱⁿ	10.0 ^mi	South (170°)	4.6 ^mph	Overcast
11:52 PM	33.1 ^°F	18.0 ^°F	54 ^%	29.94 ⁱⁿ	10.0 ^mi	Variable	3.5 ^mph	Overcast

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