DULLES, VIRGINIA

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Elevation: 290 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 - SEPTEMBER 20, 2014

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[ °C ] °F

Weather Element	Average	High	Low
Temperature	67.3 ^°F	78.8 ^°F (4:52 pm)	55 ^°F (6:52 am)
Dewpoint	58.3 ^°F	61 ^°F (8:52 am)	55 ^°F (6:52 am)
Humidity	75.9 ^%	100 ^% (5:52 am)	44 ^% (4:52 pm)
Barometer	30.18 ⁱⁿ	30.27 ⁱⁿ (1:52 am)	30.05 ⁱⁿ (7:52 pm)
Wind Speed	4.9 ^mph	10.4 ^mph (1:52 pm)
Wind Gust		16.1 ^mph (2:52 pm)

Weather Element	Average
Visibility	8.9 ^mi
Wind Direction	ESE (105.6 °)

Weather Element	Total
Precipitation	---
Cooling Degree Days	1.9 (Base 65)
Growing Degree Days	16.9 (Base 50)

Averaged from 25 records on September 20, 2014

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - SEPTEMBER 20, 2014

[ °C ] °F

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Events	Conditions
1:52 AM	63.0 ^°F	60.1 ^°F	90 ^%	30.27 ⁱⁿ	10.0 ^mi	ESE (120°)	9.2 ^mph			Overcast
2:52 AM	63.0 ^°F	60.1 ^°F	90 ^%	30.26 ⁱⁿ	10.0 ^mi	SE (140°)	8.1 ^mph			Overcast
3:52 AM	62.1 ^°F	60.1 ^°F	93 ^%	30.25 ⁱⁿ	10.0 ^mi	SE (140°)	4.6 ^mph			Overcast
4:52 AM	61.0 ^°F	59.0 ^°F	93 ^%	30.25 ⁱⁿ	10.0 ^mi	Calm				Mostly Cloudy
5:52 AM	57.0 ^°F	57.0 ^°F	100 ^%	30.26 ⁱⁿ	6.0 ^mi	Calm				Partly Cloudy
6:52 AM	55.0 ^°F	55.0 ^°F	100 ^%	30.26 ⁱⁿ	7.0 ^mi	Calm			Fog	Shallow Fog
7:52 AM	57.9 ^°F	57.9 ^°F	100 ^%	30.26 ⁱⁿ	4.0 ^mi	Calm				Partly Cloudy
8:40 AM	62.6 ^°F	60.8 ^°F	94 ^%	30.27 ⁱⁿ	5.0 ^mi	Calm				Mostly Cloudy
8:52 AM	63.0 ^°F	61.0 ^°F	93 ^%	30.26 ⁱⁿ	5.0 ^mi	West (260°)	3.5 ^mph			Mostly Cloudy
9:28 AM	64.4 ^°F	60.8 ^°F	88 ^%	30.27 ⁱⁿ	7.0 ^mi	South (190°)	3.5 ^mph			Scattered Clouds
9:52 AM	64.9 ^°F	60.1 ^°F	84 ^%	30.27 ⁱⁿ	8.0 ^mi	Calm				Scattered Clouds
10:52 AM	70.0 ^°F	60.1 ^°F	71 ^%	30.24 ⁱⁿ	10.0 ^mi	South (190°)	6.9 ^mph			Partly Cloudy
11:52 AM	73.0 ^°F	57.0 ^°F	57 ^%	30.23 ⁱⁿ	10.0 ^mi	Variable	6.9 ^mph			Partly Cloudy
12:52 PM	75.0 ^°F	55.9 ^°F	51 ^%	30.19 ⁱⁿ	10.0 ^mi	Variable	4.6 ^mph			Partly Cloudy
1:52 PM	77.0 ^°F	57.0 ^°F	50 ^%	30.16 ⁱⁿ	10.0 ^mi	South (190°)	10.4 ^mph			Partly Cloudy
2:52 PM	78.1 ^°F	57.0 ^°F	48 ^%	30.13 ⁱⁿ	10.0 ^mi	SE (140°)	6.9 ^mph	16.1 ^mph		Scattered Clouds
3:52 PM	78.1 ^°F	55.9 ^°F	46 ^%	30.10 ⁱⁿ	10.0 ^mi	SSE (150°)	10.4 ^mph			Scattered Clouds
4:52 PM	78.8 ^°F	55.4 ^°F	44 ^%	30.10 ⁱⁿ	10.0 ^mi	SE (140°)	10.4 ^mph			Scattered Clouds
5:52 PM	75.9 ^°F	55.0 ^°F	48 ^%	30.08 ⁱⁿ	10.0 ^mi	SSE (150°)	9.2 ^mph			Scattered Clouds
6:52 PM	73.0 ^°F	57.0 ^°F	57 ^%	30.06 ⁱⁿ	10.0 ^mi	SSE (160°)	6.9 ^mph			Scattered Clouds
7:52 PM	70.0 ^°F	57.9 ^°F	65 ^%	30.05 ⁱⁿ	10.0 ^mi	SSE (150°)	5.8 ^mph			Partly Cloudy
8:52 PM	69.1 ^°F	59.0 ^°F	70 ^%	30.05 ⁱⁿ	10.0 ^mi	SSE (150°)	8.1 ^mph			Partly Cloudy
9:52 PM	66.9 ^°F	60.1 ^°F	79 ^%	30.05 ⁱⁿ	10.0 ^mi	SSE (160°)	4.6 ^mph			Partly Cloudy
10:52 PM	63.0 ^°F	60.1 ^°F	90 ^%	30.07 ⁱⁿ	10.0 ^mi	SSW (210°)	3.5 ^mph			Clear
11:52 PM	60.1 ^°F	59.0 ^°F	96 ^%	30.07 ⁱⁿ	10.0 ^mi	Calm				Clear

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