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 - 12 FEBRUARY, 2016

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	-4.9 ^°C	-1.7 ^°C (12:52 pm)	-9.4 ^°C (4:52 am)
Dewpoint	-13.3 ^°C	-7.2 ^°C (10:52 pm)	-15.6 ^°C (12:52 am)
Humidity	54 ^%	78 ^% (10:52 pm)	38 ^% (12:52 pm)
Barometer	1021.7 ^hPa	1027.4 hPa (12:52 am)	1015.9 hPa (5:52 pm)
Wind Speed	8.4 ^km/h	18.5 ^km/h (8:46 am)

Weather Element	Average
Visibility	15.9 ^km
Wind Direction	SSE (156.4 °)

Weather Element	Total
Precipitation	---
Heating Degree Days	23.9 (Base 18.3)

Averaged from 25 records on 12 February, 2016

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 12 FEBRUARY, 2016

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Precipitation	Events	Conditions
12:52 AM	-7.2 ^°C	-15.6 ^°C	52 ^%	1027.4 hPa	16.1 ^km	WNW (290°)	13 ^km/h			Clear
1:52 AM	-8.3 ^°C	-15.6 ^°C	56 ^%	1027.1 hPa	16.1 ^km	West (270°)	7.4 ^km/h			Scattered Clouds
2:52 AM	-8.3 ^°C	-15.6 ^°C	56 ^%	1027.1 hPa	16.1 ^km	Calm				Clear
3:52 AM	-8.3 ^°C	-15 ^°C	59 ^%	1026.4 hPa	16.1 ^km	WNW (300°)	7.4 ^km/h			Partly Cloudy
4:52 AM	-9.4 ^°C	-14.4 ^°C	68 ^%	1026.4 hPa	16.1 ^km	Calm				Mostly Cloudy
5:52 AM	-9.4 ^°C	-13.9 ^°C	70 ^%	1026.4 hPa	16.1 ^km	SSE (150°)	5.6 ^km/h			Scattered Clouds
6:52 AM	-9.4 ^°C	-13.3 ^°C	74 ^%	1026.4 hPa	16.1 ^km	Calm				Mostly Cloudy
7:52 AM	-7.2 ^°C	-13.9 ^°C	59 ^%	1026.4 hPa	16.1 ^km	South (190°)	7.4 ^km/h			Mostly Cloudy
8:46 AM	-7 ^°C	-11 ^°C	74 ^%	1021.7 hPa	16.1 ^km	SSW (210°)	18.5 ^km/h			Overcast
8:52 AM	-6.1 ^°C	-14.4 ^°C	53 ^%	1026.1 hPa	16.1 ^km	Calm				Mostly Cloudy
9:52 AM	-4.4 ^°C	-15 ^°C	44 ^%	1025.4 hPa	16.1 ^km	Variable	5.6 ^km/h			Mostly Cloudy
10:52 AM	-3.9 ^°C	-15 ^°C	43 ^%	1024 hPa	16.1 ^km	South (170°)	14.8 ^km/h			Mostly Cloudy
11:52 AM	-2.8 ^°C	-15 ^°C	39 ^%	1023 hPa	16.1 ^km	South (190°)	11.1 ^km/h			Mostly Cloudy
12:52 PM	-1.7 ^°C	-14.4 ^°C	38 ^%	1021 hPa	16.1 ^km	South (170°)	18.5 ^km/h			Overcast
1:52 PM	-1.7 ^°C	-14.4 ^°C	38 ^%	1019.3 hPa	16.1 ^km	Variable	11.1 ^km/h			Overcast
2:52 PM	-1.7 ^°C	-14.4 ^°C	38 ^%	1017.9 hPa	16.1 ^km	SSW (200°)	13 ^km/h			Overcast
3:52 PM	-1.7 ^°C	-14.4 ^°C	38 ^%	1016.6 hPa	16.1 ^km	SSW (200°)	13 ^km/h			Mostly Cloudy
4:52 PM	-1.7 ^°C	-13.9 ^°C	40 ^%	1016.6 hPa	16.1 ^km	SSW (200°)	11.1 ^km/h			Mostly Cloudy
5:52 PM	-2.2 ^°C	-13.3 ^°C	43 ^%	1015.9 hPa	16.1 ^km	SSW (210°)	7.4 ^km/h			Mostly Cloudy
6:52 PM	-2.8 ^°C	-13.9 ^°C	43 ^%	1016.3 hPa	16.1 ^km	Calm				Overcast
7:52 PM	-3.3 ^°C	-11.7 ^°C	53 ^%	1016.3 hPa	16.1 ^km	Calm				Overcast
8:52 PM	-2.8 ^°C	-12.2 ^°C	49 ^%	1016.3 hPa	16.1 ^km	West (260°)	9.3 ^km/h			Overcast
9:52 PM	-3.3 ^°C	-8.3 ^°C	69 ^%	1016.9 hPa	12.9 ^km	NW (320°)	18.5 ^km/h	0 mm	Snow	Light Snow
10:52 PM	-3.9 ^°C	-7.2 ^°C	78 ^%	1016.3 hPa	14.5 ^km	WNW (290°)	7.4 ^km/h	0 mm		Overcast
11:52 PM	-4.4 ^°C	-7.8 ^°C	77 ^%	1016.3 hPa	16.1 ^km	WNW (290°)	9.3 ^km/h			Partly Cloudy

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