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 - 8 OCTOBER, 2015

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	17.6 ^°C	23.9 ^°C (3:52 pm)	11.1 ^°C (4:52 am)
Dewpoint	12.6 ^°C	14.4 ^°C (5:52 pm)	10.6 ^°C (4:52 am)
Humidity	75.2 ^%	97 ^% (1:52 am)	48 ^% (3:52 pm)
Barometer	1019.3 ^hPa	1021.3 hPa (9:52 am)	1018.3 hPa (3:52 pm)
Wind Speed	2.9 ^km/h	14.8 ^km/h (4:52 pm)

Weather Element	Average
Visibility	13.2 ^km
Wind Direction	ENE (63.8 °)

Weather Element	Total
Precipitation	---
Heating Degree Days	0.8 (Base 18.3)
Growing Degree Days	7.5 (Base 10)

Averaged from 24 records on 8 October, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 8 OCTOBER, 2015

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Conditions
12:52 AM	13.3 ^°C	12.2 ^°C	93 ^%	1019 hPa	12.9 ^km	Calm		Clear
1:52 AM	12.2 ^°C	11.7 ^°C	97 ^%	1019 hPa	11.3 ^km	Calm		Clear
2:52 AM	12.2 ^°C	11.1 ^°C	93 ^%	1019 hPa	11.3 ^km	Calm		Clear
3:52 AM	11.7 ^°C	11.1 ^°C	96 ^%	1019 hPa	9.7 ^km	Calm		Clear
4:52 AM	11.1 ^°C	10.6 ^°C	97 ^%	1019.3 hPa	8 ^km	Calm		Clear
5:52 AM	11.7 ^°C	10.6 ^°C	93 ^%	1019.6 hPa	8 ^km	Calm		Mostly Cloudy
6:52 AM	11.7 ^°C	11.1 ^°C	96 ^%	1020 hPa	9.7 ^km	Calm		Scattered Clouds
7:52 AM	11.1 ^°C	10.6 ^°C	97 ^%	1020.3 hPa	9.7 ^km	Calm		Scattered Clouds
8:52 AM	15.6 ^°C	13.9 ^°C	90 ^%	1021 hPa	11.3 ^km	Calm		Scattered Clouds
9:52 AM	18.9 ^°C	13.3 ^°C	70 ^%	1021.3 hPa	14.5 ^km	Calm		Mostly Cloudy
10:52 AM	21.1 ^°C	13.9 ^°C	63 ^%	1021 hPa	16.1 ^km	North (350°)	7.4 ^km/h	Scattered Clouds
11:52 AM	22.2 ^°C	13.3 ^°C	57 ^%	1021 hPa	16.1 ^km	Variable	5.6 ^km/h	Mostly Cloudy
12:52 PM	23.3 ^°C	12.8 ^°C	52 ^%	1020.7 hPa	16.1 ^km	Calm		Mostly Cloudy
1:52 PM	23.3 ^°C	12.2 ^°C	50 ^%	1020 hPa	11.3 ^km	Calm		Haze
2:52 PM	23.3 ^°C	12.2 ^°C	50 ^%	1019 hPa	12.9 ^km	Calm		Scattered Clouds
3:52 PM	23.9 ^°C	12.2 ^°C	48 ^%	1018.3 hPa	16.1 ^km	Calm		Mostly Cloudy
4:52 PM	23.9 ^°C	13.9 ^°C	53 ^%	1018.3 hPa	12.9 ^km	SSW (210°)	14.8 ^km/h	Mostly Cloudy
5:52 PM	21.7 ^°C	14.4 ^°C	63 ^%	1018.3 hPa	12.9 ^km	South (170°)	9.3 ^km/h	Scattered Clouds
6:52 PM	20 ^°C	14.4 ^°C	70 ^%	1018.3 hPa	16.1 ^km	SSE (150°)	5.6 ^km/h	Scattered Clouds
7:52 PM	18.9 ^°C	14.4 ^°C	75 ^%	1018.6 hPa	16.1 ^km	SSE (150°)	7.4 ^km/h	Scattered Clouds
8:52 PM	18.3 ^°C	13.9 ^°C	75 ^%	1018.6 hPa	16.1 ^km	SSE (160°)	5.6 ^km/h	Scattered Clouds
9:52 PM	18.3 ^°C	13.3 ^°C	73 ^%	1018.6 hPa	16.1 ^km	South (170°)	5.6 ^km/h	Mostly Cloudy
10:52 PM	18.3 ^°C	12.8 ^°C	70 ^%	1018.3 hPa	16.1 ^km	South (170°)	7.4 ^km/h	Mostly Cloudy
11:52 PM	16.1 ^°C	13.3 ^°C	83 ^%	1018.3 hPa	14.5 ^km	Calm		Mostly Cloudy

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