RESTON, 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 - 4 AUGUST, 2015

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	25.7 ^°C	32.2 ^°C (2:52 pm)	19.4 ^°C (6:52 am)
Dewpoint	18.5 ^°C	21.1 ^°C (8:52 pm)	15.6 ^°C (4:52 am)
Humidity	66 ^%	93 ^% (8:52 pm)	42 ^% (2:52 pm)
Barometer	1012.5 ^hPa	1013.9 hPa (8:52 am)	1010.5 hPa (12:52 am)
Wind Speed	11.1 ^km/h	33.3 ^km/h (4:40 am)
Wind Gust		51.8 ^km/h (4:40 am)

Weather Element	Average
Visibility	15.6 ^km
Wind Direction	SSW (187.3 °)

Weather Element	Total
Precipitation	4.32 ^mm
Cooling Degree Days	7.5 (Base 18.3)
Growing Degree Days	15.8 (Base 10)

Averaged from 30 records on 4 August, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 4 AUGUST, 2015

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Precipitation	Events	Conditions
12:52 AM	23.3 ^°C	17.8 ^°C	71 ^%	1010.5 hPa	16.1 ^km	SSW (200°)	11.1 ^km/h				Partly Cloudy
1:52 AM	23.3 ^°C	17.8 ^°C	71 ^%	1010.5 hPa	16.1 ^km	South (190°)	13 ^km/h				Partly Cloudy
2:52 AM	23.3 ^°C	17.8 ^°C	71 ^%	1010.5 hPa	16.1 ^km	SSW (200°)	13 ^km/h				Partly Cloudy
3:52 AM	22.8 ^°C	17.8 ^°C	73 ^%	1011.2 hPa	16.1 ^km	SSW (210°)	11.1 ^km/h				Scattered Clouds
4:40 AM	23 ^°C	16 ^°C	65 ^%	1012.9 hPa	16.1 ^km	NNW (330°)	33.3 ^km/h	51.8 ^km/h		Thunderstorm	Thunderstorm
4:52 AM	22.2 ^°C	15.6 ^°C	66 ^%	1012.5 hPa	16.1 ^km	NNW (340°)	22.2 ^km/h	44.4 ^km/h		Thunderstorm	Thunderstorm
5:48 AM	20 ^°C	17 ^°C	83 ^%	1012.9 hPa	16.1 ^km	Calm					Scattered Clouds
5:52 AM	20.6 ^°C	16.1 ^°C	75 ^%	1012.5 hPa	16.1 ^km	Calm					Scattered Clouds
6:52 AM	19.4 ^°C	16.7 ^°C	84 ^%	1012.9 hPa	16.1 ^km	Calm					Mostly Cloudy
7:52 AM	22.2 ^°C	17.2 ^°C	73 ^%	1013.5 hPa	16.1 ^km	South (180°)	7.4 ^km/h				Scattered Clouds
8:52 AM	24.4 ^°C	17.2 ^°C	64 ^%	1013.9 hPa	16.1 ^km	SSW (200°)	7.4 ^km/h				Partly Cloudy
9:52 AM	26.1 ^°C	18.3 ^°C	62 ^%	1013.9 hPa	16.1 ^km	South (190°)	7.4 ^km/h				Partly Cloudy
10:52 AM	28.3 ^°C	18.9 ^°C	56 ^%	1013.9 hPa	16.1 ^km	Calm					Clear
11:52 AM	30 ^°C	18.3 ^°C	49 ^%	1013.5 hPa	16.1 ^km	Calm					Scattered Clouds
12:52 PM	31.1 ^°C	18.3 ^°C	46 ^%	1013.2 hPa	16.1 ^km	Variable	11.1 ^km/h				Scattered Clouds
1:52 PM	30.6 ^°C	17.8 ^°C	46 ^%	1012.9 hPa	16.1 ^km	WSW (250°)	7.4 ^km/h				Mostly Cloudy
2:52 PM	32.2 ^°C	17.8 ^°C	42 ^%	1012.2 hPa	16.1 ^km	West (260°)	16.7 ^km/h				Scattered Clouds
3:52 PM	32.2 ^°C	18.9 ^°C	45 ^%	1011.9 hPa	16.1 ^km	South (190°)	16.7 ^km/h				Scattered Clouds
4:52 PM	31.1 ^°C	18.9 ^°C	48 ^%	1011.5 hPa	16.1 ^km	SSW (200°)	14.8 ^km/h	27.8 ^km/h			Mostly Cloudy
5:41 PM	32 ^°C	19 ^°C	46 ^%	1011.5 hPa	16.1 ^km	SW (230°)	13 ^km/h			Thunderstorm	Thunderstorm
5:52 PM	30.6 ^°C	18.3 ^°C	48 ^%	1011.9 hPa	16.1 ^km	WSW (240°)	14.8 ^km/h			Thunderstorm	Thunderstorm
6:05 PM	28 ^°C	19 ^°C	58 ^%	1012.5 hPa	16.1 ^km	NNW (330°)	24.1 ^km/h				Mostly Cloudy
6:14 PM	28 ^°C	19 ^°C	58 ^%	1012.9 hPa	16.1 ^km	NNW (330°)	16.7 ^km/h				Mostly Cloudy
6:52 PM	27.2 ^°C	20 ^°C	65 ^%	1011.9 hPa	16.1 ^km	East (90°)	7.4 ^km/h		0 mm		Mostly Cloudy
7:38 PM	26 ^°C	21 ^°C	74 ^%	1013.2 hPa	6.4 ^km	WSW (250°)	14.8 ^km/h		0 mm	Rain	Rain
7:52 PM	23.9 ^°C	19.4 ^°C	76 ^%	1012.2 hPa	14.5 ^km	ENE (60°)	14.8 ^km/h		4.32 mm	Rain	Light Rain
8:52 PM	22.2 ^°C	21.1 ^°C	93 ^%	1013.2 hPa	16.1 ^km	SSW (200°)	11.1 ^km/h		0 mm		Scattered Clouds
9:52 PM	22.8 ^°C	21.1 ^°C	90 ^%	1012.9 hPa	14.5 ^km	WNW (300°)	7.4 ^km/h				Mostly Cloudy
10:52 PM	22.2 ^°C	21.1 ^°C	93 ^%	1013.5 hPa	16.1 ^km	NNW (330°)	5.6 ^km/h				Partly Cloudy
11:52 PM	22.8 ^°C	21.1 ^°C	90 ^%	1013.5 hPa	16.1 ^km	NW (320°)	9.3 ^km/h				Partly Cloudy

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