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 - JULY 31, 2014

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[ °C ] °F

Weather Element	Average	High	Low
Temperature	72.2 ^°F	84.2 ^°F (2:52 pm)	57.9 ^°F (2:52 am)
Dewpoint	57.6 ^°F	64.4 ^°F (11:52 pm)	53.6 ^°F (10:52 pm)
Humidity	64 ^%	94 ^% (12:29 am)	35 ^% (6:52 pm)
Barometer	30.09 ⁱⁿ	30.13 ⁱⁿ (12:52 pm)	30.06 ⁱⁿ (4:52 pm)
Wind Speed	4.9 ^mph	10.4 ^mph (12:52 pm)

Weather Element	Average
Visibility	10 ^mi
Wind Direction	SE (134.2 °)

Weather Element	Total
Precipitation	---
Cooling Degree Days	6.1 (Base 65)
Growing Degree Days	21.1 (Base 50)

Averaged from 24 records on July 31, 2014

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - JULY 31, 2014

[ °C ] °F

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Conditions
12:52 AM	61.0 ^°F	55.9 ^°F	83 ^%	30.06 ⁱⁿ	10.0 ^mi	South (190°)	3.5 ^mph	Mostly Cloudy
1:52 AM	64.4 ^°F	57.2 ^°F	77 ^%	30.08 ⁱⁿ	10.0 ^mi	NW (320°)	5.8 ^mph	Overcast
2:52 AM	59.0 ^°F	57.2 ^°F	94 ^%	30.07 ⁱⁿ	10.0 ^mi	Calm		Scattered Clouds
3:52 AM	57.9 ^°F	55.9 ^°F	93 ^%	30.06 ⁱⁿ	10.0 ^mi	Calm		Clear
4:52 AM	59.0 ^°F	55.9 ^°F	90 ^%	30.07 ⁱⁿ	10.0 ^mi	Calm		Clear
5:52 AM	59.0 ^°F	55.4 ^°F	88 ^%	30.08 ⁱⁿ	10.0 ^mi	Calm		Partly Cloudy
6:52 AM	60.1 ^°F	57.0 ^°F	90 ^%	30.09 ⁱⁿ	10.0 ^mi	Calm		Partly Cloudy
7:52 AM	63.0 ^°F	59.0 ^°F	87 ^%	30.10 ⁱⁿ	10.0 ^mi	SSW (210°)	3.5 ^mph	Scattered Clouds
8:52 AM	66.2 ^°F	59.0 ^°F	78 ^%	30.12 ⁱⁿ	10.0 ^mi	Calm		Scattered Clouds
9:52 AM	72.0 ^°F	57.0 ^°F	59 ^%	30.11 ⁱⁿ	10.0 ^mi	Calm		Partly Cloudy
10:52 AM	77.0 ^°F	57.9 ^°F	52 ^%	30.11 ⁱⁿ	10.0 ^mi	Variable	4.6 ^mph	Partly Cloudy
11:52 AM	79.0 ^°F	57.0 ^°F	47 ^%	30.10 ⁱⁿ	10.0 ^mi	South (190°)	5.8 ^mph	Scattered Clouds
12:52 PM	81.0 ^°F	55.0 ^°F	41 ^%	30.09 ⁱⁿ	10.0 ^mi	SSW (210°)	9.2 ^mph	Scattered Clouds
1:52 PM	82.9 ^°F	55.0 ^°F	38 ^%	30.09 ⁱⁿ	10.0 ^mi	SSE (160°)	9.2 ^mph	Scattered Clouds
2:52 PM	84.0 ^°F	55.0 ^°F	37 ^%	30.09 ⁱⁿ	10.0 ^mi	SW (220°)	10.4 ^mph	Scattered Clouds
3:52 PM	82.0 ^°F	54.0 ^°F	38 ^%	30.08 ⁱⁿ	10.0 ^mi	South (190°)	9.2 ^mph	Scattered Clouds
4:52 PM	84.0 ^°F	54.0 ^°F	35 ^%	30.07 ⁱⁿ	10.0 ^mi	South (190°)	9.2 ^mph	Mostly Cloudy
5:52 PM	84.2 ^°F	53.6 ^°F	35 ^%	30.08 ⁱⁿ	10.0 ^mi	SW (220°)	8.1 ^mph	Mostly Cloudy
6:52 PM	82.0 ^°F	57.0 ^°F	42 ^%	30.08 ⁱⁿ	10.0 ^mi	SSW (210°)	9.2 ^mph	Mostly Cloudy
7:52 PM	78.8 ^°F	59.0 ^°F	51 ^%	30.10 ⁱⁿ	10.0 ^mi	South (180°)	8.1 ^mph	Mostly Cloudy
8:52 PM	75.9 ^°F	63.0 ^°F	64 ^%	30.11 ⁱⁿ	10.0 ^mi	South (190°)	5.8 ^mph	Mostly Cloudy
9:52 PM	75.2 ^°F	64.4 ^°F	69 ^%	30.13 ⁱⁿ	10.0 ^mi	South (180°)	5.8 ^mph	Mostly Cloudy
10:52 PM	73.0 ^°F	63.0 ^°F	71 ^%	30.12 ⁱⁿ	10.0 ^mi	South (180°)	4.6 ^mph	Scattered Clouds
11:52 PM	72.0 ^°F	64.0 ^°F	76 ^%	30.13 ⁱⁿ	10.0 ^mi	South (180°)	5.8 ^mph	Scattered Clouds

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