DULLES, VIRGINIA

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Elevation: 88 meters 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 - 21 APRIL, 2014

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	11.6 ^°C	20.6 ^°C (4:52 pm)	0 ^°C (6:52 am)
Dewpoint	-1.7 ^°C	5 ^°C (11:52 pm)	-7.2 ^°C (1:52 pm)
Humidity	47.9 ^%	92 ^% (6:52 am)	18 ^% (1:52 pm)
Barometer	1019 ^hPa	1025.1 hPa (1:52 am)	1012.2 hPa (11:52 pm)
Wind Speed	3.7 ^km/h	14.8 ^km/h (5:52 pm)

Weather Element	Average
Visibility	16.1 ^km
Wind Direction	ENE (59.1 °)

Weather Element	Total
Precipitation	0.25 ^mm
Heating Degree Days	8.1 (Base 18.3)
Growing Degree Days	0.3 (Base 10)

Averaged from 23 records on 21 April, 2014

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 21 APRIL, 2014

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Precipitation	Conditions
1:52 AM	3.9 ^°C	0.6 ^°C	79 ^%	1025.1 hPa	16.1 ^km	Calm			Partly Cloudy
2:52 AM	2.2 ^°C	0 ^°C	86 ^%	1024.4 hPa	16.1 ^km	Calm			Clear
3:52 AM	1.7 ^°C	-0.6 ^°C	85 ^%	1023.7 hPa	16.1 ^km	Calm			Partly Cloudy
4:52 AM	1.1 ^°C	-0.6 ^°C	89 ^%	1023.4 hPa	16.1 ^km	Calm			Partly Cloudy
5:52 AM	0.6 ^°C	-1.1 ^°C	89 ^%	1024 hPa	16.1 ^km	Calm			Partly Cloudy
6:52 AM	0 ^°C	-1.1 ^°C	92 ^%	1023.7 hPa	16.1 ^km	Calm			Partly Cloudy
7:52 AM	5.6 ^°C	2.2 ^°C	79 ^%	1023.4 hPa	16.1 ^km	Calm			Scattered Clouds
8:52 AM	8.9 ^°C	-1.1 ^°C	50 ^%	1023 hPa	16.1 ^km	Calm			Scattered Clouds
9:52 AM	10.6 ^°C	-2.2 ^°C	41 ^%	1022.4 hPa	16.1 ^km	Calm			Scattered Clouds
10:52 AM	12.2 ^°C	-4.4 ^°C	31 ^%	1022 hPa	16.1 ^km	Calm			Scattered Clouds
11:52 AM	14.4 ^°C	-5 ^°C	26 ^%	1021 hPa	16.1 ^km	Variable	5.6 ^km/h		Scattered Clouds
12:52 PM	16.7 ^°C	-6.7 ^°C	20 ^%	1019.6 hPa	16.1 ^km	Calm		0.25 mm	Partly Cloudy
1:52 PM	17.8 ^°C	-7.2 ^°C	18 ^%	1018.3 hPa	16.1 ^km	South (170°)	7.4 ^km/h		Partly Cloudy
2:52 PM	18.9 ^°C	-5 ^°C	20 ^%	1017.3 hPa	16.1 ^km	Variable	7.4 ^km/h		Partly Cloudy
3:52 PM	20 ^°C	-4.4 ^°C	19 ^%	1015.6 hPa	16.1 ^km	Calm			Partly Cloudy
4:52 PM	20.6 ^°C	-5 ^°C	18 ^%	1014.9 hPa	16.1 ^km	SSW (210°)	7.4 ^km/h		Partly Cloudy
5:52 PM	20.6 ^°C	-2.2 ^°C	22 ^%	1014.6 hPa	16.1 ^km	South (190°)	14.8 ^km/h		Partly Cloudy
6:52 PM	18.9 ^°C	-1.1 ^°C	26 ^%	1013.9 hPa	16.1 ^km	SE (140°)	13 ^km/h		Partly Cloudy
7:52 PM	16.7 ^°C	-1.1 ^°C	30 ^%	1013.5 hPa	16.1 ^km	SSE (160°)	7.4 ^km/h		Scattered Clouds
8:52 PM	15 ^°C	-1.7 ^°C	32 ^%	1013.5 hPa	16.1 ^km	SSE (160°)	7.4 ^km/h		Mostly Cloudy
9:52 PM	14.4 ^°C	1.1 ^°C	41 ^%	1012.9 hPa	16.1 ^km	SSE (160°)	5.6 ^km/h		Mostly Cloudy
10:52 PM	13.3 ^°C	1.7 ^°C	45 ^%	1012.5 hPa	16.1 ^km	South (170°)	7.4 ^km/h		Mostly Cloudy
11:52 PM	11.7 ^°C	5 ^°C	64 ^%	1012.2 hPa	16.1 ^km	Calm			Mostly Cloudy

Hourly data recorded from KIAD, located 0 kilometers away from Dulles, Virginia