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 - 9 OCTOBER, 2015

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	19.4 ^°C	26.7 ^°C (3:52 pm)	15.6 ^°C (12:52 am)
Dewpoint	15.8 ^°C	18.3 ^°C (5:52 pm)	10 ^°C (3:51 pm)
Humidity	80.4 ^%	100 ^% (7:59 am)	56 ^% (3:52 pm)
Barometer	1014.2 ^hPa	1019 hPa (3:51 pm)	1010.2 hPa (3:52 pm)
Wind Speed	13 ^km/h	25.9 ^km/h (6:30 pm)
Wind Gust		33.3 ^km/h (6:30 pm)

Weather Element	Average
Visibility	12.6 ^km
Wind Direction	SW (221.3 °)

Weather Element	Total
Precipitation	6.6 ^mm
Cooling Degree Days	2.8 (Base 18.3)
Growing Degree Days	11.2 (Base 10)

Averaged from 30 records on 9 October, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 9 OCTOBER, 2015

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Precipitation	Events	Conditions
12:52 AM	15.6 ^°C	13.3 ^°C	86 ^%	1017.9 hPa	12.9 ^km	South (190°)	5.6 ^km/h				Scattered Clouds
1:52 AM	16.7 ^°C	14.4 ^°C	86 ^%	1017.6 hPa	12.9 ^km	South (170°)	9.3 ^km/h				Mostly Cloudy
2:52 AM	16.7 ^°C	15 ^°C	90 ^%	1016.6 hPa	12.9 ^km	South (170°)	13 ^km/h				Mostly Cloudy
3:52 AM	16.7 ^°C	15 ^°C	90 ^%	1016.3 hPa	12.9 ^km	South (170°)	13 ^km/h				Mostly Cloudy
4:52 AM	16.1 ^°C	15 ^°C	93 ^%	1015.6 hPa	11.3 ^km	South (190°)	13 ^km/h				Mostly Cloudy
5:52 AM	16.1 ^°C	15 ^°C	93 ^%	1015.6 hPa	9.7 ^km	South (190°)	13 ^km/h		0 mm	Rain	Light Rain
6:52 AM	16.1 ^°C	15 ^°C	93 ^%	1015.2 hPa	9.7 ^km	South (180°)	13 ^km/h		0 mm		Mostly Cloudy
7:52 AM	16.1 ^°C	15.6 ^°C	97 ^%	1015.2 hPa	8 ^km	Variable	5.6 ^km/h				Mostly Cloudy
7:59 AM	16 ^°C	16 ^°C	100 ^%	1015.2 hPa	4.8 ^km	SSW (200°)	7.4 ^km/h				Overcast
8:36 AM	17 ^°C	16 ^°C	94 ^%	1015.2 hPa	0.8 ^km	South (180°)	13 ^km/h				Mostly Cloudy
8:52 AM	16.7 ^°C	16.1 ^°C	96 ^%	1015.2 hPa	0.8 ^km	South (180°)	11.1 ^km/h				Mostly Cloudy
9:05 AM	17 ^°C	16 ^°C	94 ^%	1015.2 hPa	4 ^km	South (180°)	9.3 ^km/h				Overcast
9:14 AM	17 ^°C	16 ^°C	94 ^%	1015.2 hPa	11.3 ^km	South (180°)	7.4 ^km/h				Mostly Cloudy
9:52 AM	20 ^°C	16.7 ^°C	81 ^%	1015.2 hPa	11.3 ^km	SSW (210°)	11.1 ^km/h				Mostly Cloudy
10:52 AM	22.8 ^°C	16.7 ^°C	68 ^%	1014.6 hPa	16.1 ^km	SSW (210°)	14.8 ^km/h				Mostly Cloudy
11:52 AM	22.8 ^°C	16.7 ^°C	68 ^%	1013.9 hPa	16.1 ^km	SSW (200°)	16.7 ^km/h				Mostly Cloudy
12:52 PM	22.8 ^°C	17.2 ^°C	71 ^%	1013.5 hPa	16.1 ^km	SSW (200°)	16.7 ^km/h		0 mm		Mostly Cloudy
1:52 PM	23.3 ^°C	17.8 ^°C	71 ^%	1012.2 hPa	16.1 ^km	SW (230°)	11.1 ^km/h		0 mm		Mostly Cloudy
2:52 PM	26.1 ^°C	17.8 ^°C	60 ^%	1011.2 hPa	16.1 ^km	SSW (210°)	13 ^km/h	27.8 ^km/h			Mostly Cloudy
3:51 PM	17 ^°C	10 ^°C	63 ^%	1019 hPa	16.1 ^km	NNW (330°)	18.5 ^km/h				Overcast
3:52 PM	26.7 ^°C	17.2 ^°C	56 ^%	1010.2 hPa	16.1 ^km	SSW (210°)	14.8 ^km/h				Mostly Cloudy
4:52 PM	25.6 ^°C	17.8 ^°C	62 ^%	1010.5 hPa	16.1 ^km	South (190°)	13 ^km/h				Mostly Cloudy
5:52 PM	24.4 ^°C	18.3 ^°C	69 ^%	1010.5 hPa	16.1 ^km	SW (220°)	13 ^km/h				Overcast
6:30 PM	21 ^°C	17 ^°C	78 ^%	1011.5 hPa	12.9 ^km	NW (310°)	25.9 ^km/h	33.3 ^km/h	3.3 mm	Rain-Thunderstorm	Light Thunderstorms and Rain
6:52 PM	20 ^°C	16.7 ^°C	81 ^%	1011.2 hPa	16.1 ^km	NW (320°)	16.7 ^km/h		3.3 mm		Overcast
7:52 PM	20 ^°C	15.6 ^°C	76 ^%	1012.9 hPa	16.1 ^km	NNW (340°)	14.8 ^km/h				Overcast
8:52 PM	20.6 ^°C	15.6 ^°C	73 ^%	1013.5 hPa	16.1 ^km	NNW (330°)	14.8 ^km/h				Overcast
9:52 PM	19.4 ^°C	15.6 ^°C	79 ^%	1014.2 hPa	16.1 ^km	WNW (290°)	13 ^km/h				Overcast
10:52 PM	19.4 ^°C	15 ^°C	76 ^%	1014.6 hPa	16.1 ^km	NNW (330°)	13 ^km/h				Overcast
11:52 PM	18.3 ^°C	13.9 ^°C	75 ^%	1015.6 hPa	16.1 ^km	NNW (330°)	16.7 ^km/h				Overcast

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