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 - 1 OCTOBER, 2015

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	13.1 ^°C	14.4 ^°C (12:52 am)	12 ^°C (7:37 am)
Dewpoint	12 ^°C	13.3 ^°C (12:52 am)	11.1 ^°C (3:52 am)
Humidity	93.4 ^%	100 ^% (7:37 am)	87 ^% (2:52 am)
Barometer	1017.3 ^hPa	1019.6 hPa (9:52 pm)	1014.9 hPa (12:52 am)
Wind Speed	17.9 ^km/h	24.1 ^km/h (3:52 am)
Wind Gust		37 ^km/h (3:52 am)

Weather Element	Average
Visibility	6.9 ^km
Wind Direction	NNW (321.8 °)

Weather Element	Total
Precipitation	6.6 ^mm
Heating Degree Days	5.2 (Base 18.3)
Growing Degree Days	3.2 (Base 10)

Averaged from 39 records on 1 October, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 1 OCTOBER, 2015

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Precipitation	Events	Conditions
12:52 AM	14.4 ^°C	13.3 ^°C	93 ^%	1014.9 hPa	4.8 ^km	North (360°)	14.8 ^km/h		0 mm		Light Drizzle
1:12 AM	14 ^°C	13 ^°C	94 ^%	1014.9 hPa	4.8 ^km	North (350°)	20.4 ^km/h		0 mm		Light Drizzle
1:23 AM	14 ^°C	13 ^°C	94 ^%	1014.9 hPa	4.8 ^km	North (350°)	20.4 ^km/h		0 mm		Light Drizzle
1:52 AM	13.9 ^°C	12.8 ^°C	93 ^%	1014.9 hPa	9.7 ^km	North (360°)	18.5 ^km/h	31.5 ^km/h	0 mm		Light Drizzle
2:52 AM	13.9 ^°C	11.7 ^°C	87 ^%	1014.9 hPa	14.5 ^km	North (360°)	22.2 ^km/h		0 mm		Overcast
3:52 AM	13.3 ^°C	11.1 ^°C	87 ^%	1014.9 hPa	11.3 ^km	North (360°)	24.1 ^km/h	37 ^km/h	0 mm		Light Drizzle
4:52 AM	13.3 ^°C	11.1 ^°C	87 ^%	1014.9 hPa	11.3 ^km	North (360°)	22.2 ^km/h	33.3 ^km/h	0 mm		Light Drizzle
5:32 AM	13 ^°C	12 ^°C	94 ^%	1015.6 hPa	14.5 ^km	North (360°)	18.5 ^km/h		0 mm		Light Drizzle
5:52 AM	12.8 ^°C	11.7 ^°C	93 ^%	1015.6 hPa	4.8 ^km	North (360°)	18.5 ^km/h		0 mm	Rain	Light Rain
6:02 AM	13 ^°C	12 ^°C	94 ^%	1015.6 hPa	4.8 ^km	North (350°)	20.4 ^km/h		0 mm	Rain	Light Rain
6:52 AM	12.2 ^°C	11.7 ^°C	97 ^%	1015.9 hPa	4.8 ^km	North (350°)	16.7 ^km/h		0.25 mm		Overcast
7:37 AM	12 ^°C	12 ^°C	100 ^%	1016.6 hPa	3.2 ^km	North (360°)	16.7 ^km/h		0 mm	Rain	Light Rain
7:52 AM	12.2 ^°C	11.7 ^°C	97 ^%	1016.6 hPa	3.2 ^km	North (10°)	20.4 ^km/h		0.25 mm	Rain	Light Rain
8:52 AM	12.8 ^°C	11.7 ^°C	93 ^%	1016.9 hPa	4 ^km	North (350°)	16.7 ^km/h		0 mm		Overcast
9:52 AM	12.2 ^°C	11.1 ^°C	93 ^%	1017.3 hPa	4 ^km	North (360°)	20.4 ^km/h		0.51 mm	Rain	Light Rain
10:52 AM	12.2 ^°C	11.1 ^°C	93 ^%	1017.6 hPa	4 ^km	North (350°)	18.5 ^km/h		0.51 mm	Rain	Light Rain
10:59 AM	12 ^°C	12 ^°C	100 ^%	1017.9 hPa	4.8 ^km	North (350°)	20.4 ^km/h		0.25 mm	Rain	Light Rain
11:52 AM	12.8 ^°C	11.7 ^°C	93 ^%	1017.6 hPa	4 ^km	North (360°)	20.4 ^km/h	31.5 ^km/h	1.78 mm	Rain	Light Rain
11:59 AM	13 ^°C	12 ^°C	94 ^%	1017.9 hPa	9.7 ^km	North (360°)	18.5 ^km/h		0 mm	Rain	Light Rain
12:10 PM	13 ^°C	12 ^°C	94 ^%	1017.9 hPa	4 ^km	North (10°)	16.7 ^km/h		0 mm	Rain	Light Rain
12:52 PM	12.8 ^°C	11.7 ^°C	93 ^%	1017.9 hPa	4 ^km	North (10°)	20.4 ^km/h		0.25 mm	Rain	Light Rain
1:35 PM	13 ^°C	12 ^°C	94 ^%	1017.9 hPa	2.9 ^km	North (360°)	18.5 ^km/h		0.51 mm	Rain	Light Rain
1:52 PM	13.3 ^°C	12.2 ^°C	93 ^%	1017.9 hPa	2.9 ^km	North (360°)	18.5 ^km/h		0.76 mm	Rain	Light Rain
1:59 PM	13 ^°C	12 ^°C	94 ^%	1017.9 hPa	3.2 ^km	North (360°)	16.7 ^km/h		0 mm	Rain	Light Rain
2:30 PM	13 ^°C	12 ^°C	94 ^%	1017.9 hPa	2.4 ^km	North (360°)	18.5 ^km/h		0 mm	Rain	Light Rain
2:52 PM	13.3 ^°C	12.2 ^°C	93 ^%	1017.6 hPa	2.4 ^km	North (360°)	16.7 ^km/h		0.51 mm	Rain	Light Rain
3:52 PM	13.3 ^°C	12.2 ^°C	93 ^%	1017.6 hPa	2.4 ^km	North (350°)	16.7 ^km/h		0.25 mm	Rain	Light Rain
4:52 PM	13.3 ^°C	11.7 ^°C	90 ^%	1017.9 hPa	2.4 ^km	North (360°)	18.5 ^km/h		0.25 mm	Rain	Light Rain
5:32 PM	13 ^°C	12 ^°C	94 ^%	1018.3 hPa	8 ^km	North (360°)	16.7 ^km/h		0.25 mm		Light Drizzle
5:52 PM	13.3 ^°C	12.2 ^°C	93 ^%	1018.3 hPa	8 ^km	North (360°)	14.8 ^km/h		0.25 mm		Light Drizzle
6:52 PM	13.3 ^°C	12.2 ^°C	93 ^%	1019 hPa	3.2 ^km	North (360°)	13 ^km/h		0 mm		Light Drizzle
7:52 PM	13.3 ^°C	12.2 ^°C	93 ^%	1019 hPa	6.4 ^km	North (360°)	13 ^km/h		0 mm		Overcast
8:52 PM	13.3 ^°C	12.2 ^°C	93 ^%	1019.3 hPa	8 ^km	North (360°)	14.8 ^km/h				Overcast
9:52 PM	13.3 ^°C	12.2 ^°C	93 ^%	1019.6 hPa	16.1 ^km	North (360°)	13 ^km/h				Overcast
10:16 PM	13 ^°C	12 ^°C	94 ^%	1019.3 hPa	16.1 ^km	North (360°)	16.7 ^km/h				Overcast
10:40 PM	13 ^°C	12 ^°C	94 ^%	1019.3 hPa	8 ^km	North (10°)	13 ^km/h		0 mm		Light Drizzle
10:52 PM	13.3 ^°C	12.2 ^°C	93 ^%	1019.3 hPa	8 ^km	North (360°)	14.8 ^km/h		0 mm		Light Drizzle
11:40 PM	13 ^°C	12 ^°C	94 ^%	1019.3 hPa	16.1 ^km	North (360°)	16.7 ^km/h		0 mm		Overcast
11:52 PM	13.3 ^°C	12.2 ^°C	93 ^%	1019.3 hPa	16.1 ^km	North (350°)	16.7 ^km/h		0 mm		Overcast

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