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 - 30 JULY, 2015

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	25.8 ^°C	31.7 ^°C (12:52 pm)	23 ^°C (1:24 pm)
Dewpoint	22.9 ^°C	24.4 ^°C (11:52 am)	17.2 ^°C (11:52 pm)
Humidity	84.1 ^%	100 ^% (1:30 pm)	65 ^% (12:52 pm)
Barometer	1012.9 ^hPa	1014.6 hPa (12:20 am)	1010.8 hPa (5:52 pm)
Wind Speed	11.3 ^km/h	51.8 ^km/h (1:13 pm)
Wind Gust		70.3 ^km/h (1:13 pm)

Weather Element	Average
Visibility	12.9 ^km
Wind Direction	S (174.7 °)

Weather Element	Total
Precipitation	179.32 ^mm
Cooling Degree Days	9.1 (Base 18.3)
Growing Degree Days	17.4 (Base 10)

Averaged from 36 records on 30 July, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 30 JULY, 2015

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Precipitation	Events	Conditions
12:20 AM	25 ^°C	22 ^°C	83 ^%	1014.6 hPa	16.1 ^km	South (190°)	5.6 ^km/h				Mostly Cloudy
12:52 AM	25 ^°C	22.2 ^°C	84 ^%	1014.2 hPa	16.1 ^km	SSW (200°)	7.4 ^km/h				Mostly Cloudy
1:52 AM	25 ^°C	21.7 ^°C	82 ^%	1013.9 hPa	16.1 ^km	South (180°)	9.3 ^km/h				Mostly Cloudy
2:52 AM	24.4 ^°C	21.7 ^°C	85 ^%	1013.5 hPa	16.1 ^km	South (180°)	11.1 ^km/h				Scattered Clouds
3:52 AM	24.4 ^°C	22.2 ^°C	87 ^%	1012.9 hPa	16.1 ^km	South (170°)	14.8 ^km/h				Scattered Clouds
4:52 AM	24.4 ^°C	22.2 ^°C	87 ^%	1012.5 hPa	16.1 ^km	South (180°)	14.8 ^km/h				Scattered Clouds
5:52 AM	23.9 ^°C	22.2 ^°C	90 ^%	1012.9 hPa	16.1 ^km	South (190°)	13 ^km/h				Mostly Cloudy
6:52 AM	23.9 ^°C	22.2 ^°C	90 ^%	1013.2 hPa	16.1 ^km	South (190°)	9.3 ^km/h				Mostly Cloudy
7:52 AM	24.4 ^°C	22.8 ^°C	91 ^%	1012.9 hPa	16.1 ^km	SSW (210°)	11.1 ^km/h				Mostly Cloudy
7:59 AM	25 ^°C	23 ^°C	89 ^%	1013.2 hPa	16.1 ^km	SW (220°)	13 ^km/h				Partly Cloudy
8:52 AM	25.6 ^°C	22.8 ^°C	84 ^%	1012.9 hPa	16.1 ^km	South (180°)	11.1 ^km/h				Scattered Clouds
9:52 AM	27.2 ^°C	23.3 ^°C	79 ^%	1012.9 hPa	16.1 ^km	SSW (210°)	13 ^km/h				Scattered Clouds
10:52 AM	27.8 ^°C	23.9 ^°C	79 ^%	1013.2 hPa	16.1 ^km	SSW (210°)	13 ^km/h				Mostly Cloudy
11:52 AM	30 ^°C	24.4 ^°C	72 ^%	1012.9 hPa	16.1 ^km	SSW (210°)	11.1 ^km/h				Mostly Cloudy
12:52 PM	31.7 ^°C	24.4 ^°C	65 ^%	1011.9 hPa	16.1 ^km	SSW (200°)	9.3 ^km/h				Mostly Cloudy
12:56 PM	31 ^°C	24 ^°C	66 ^%	1012.2 hPa	16.1 ^km	South (180°)	11.1 ^km/h				Mostly Cloudy
1:06 PM	29 ^°C	23 ^°C	70 ^%	1012.9 hPa	3.2 ^km	West (270°)	37 ^km/h	53.8 ^km/h	0 mm	Rain-Thunderstorm	Thunderstorms and Rain
1:09 PM	25 ^°C	22 ^°C	83 ^%	1012.9 hPa	0.8 ^km	WNW (290°)	38.9 ^km/h	53.8 ^km/h	1.78 mm	Rain-Thunderstorm	Heavy Thunderstorms and Rain
1:13 PM	24 ^°C	23 ^°C	94 ^%	1012.5 hPa	0.3 ^km	West (280°)	51.8 ^km/h	70.3 ^km/h	8.64 mm	Fog-Rain-Thunderstorm	Heavy Thunderstorms and Rain
1:24 PM	23 ^°C	22 ^°C	94 ^%	1013.5 hPa	0.3 ^km	NW (310°)	9.3 ^km/h	62.9 ^km/h	24.38 mm	Fog-Rain-Thunderstorm	Heavy Thunderstorms and Rain
1:30 PM	23 ^°C	23 ^°C	100 ^%	1013.2 hPa	3.2 ^km	Calm			28.7 mm	Rain-Thunderstorm	Heavy Thunderstorms and Rain
1:32 PM	24 ^°C	23 ^°C	94 ^%	1013.2 hPa	3.2 ^km	Variable	5.6 ^km/h		28.7 mm	Rain-Thunderstorm	Heavy Thunderstorms and Rain
1:39 PM	24 ^°C	23 ^°C	94 ^%	1013.2 hPa	3.2 ^km	SSE (160°)	5.6 ^km/h		28.96 mm	Rain-Thunderstorm	Light Thunderstorms and Rain
1:43 PM	24 ^°C	23 ^°C	94 ^%	1013.2 hPa	4.8 ^km	Calm			28.96 mm	Rain-Thunderstorm	Light Thunderstorms and Rain
1:52 PM	24.4 ^°C	23.3 ^°C	94 ^%	1012.9 hPa	11.3 ^km	ENE (70°)	5.6 ^km/h		28.96 mm		Mostly Cloudy
1:55 PM	25 ^°C	24 ^°C	94 ^%	1013.2 hPa	12.9 ^km	ENE (70°)	5.6 ^km/h				Mostly Cloudy
2:52 PM	26.7 ^°C	24.4 ^°C	87 ^%	1011.9 hPa	16.1 ^km	South (180°)	5.6 ^km/h		0.25 mm		Mostly Cloudy
3:52 PM	27.8 ^°C	24.4 ^°C	82 ^%	1011.2 hPa	16.1 ^km	SW (220°)	11.1 ^km/h				Overcast
4:52 PM	28.9 ^°C	23.9 ^°C	74 ^%	1011.2 hPa	16.1 ^km	SSW (200°)	7.4 ^km/h				Mostly Cloudy
5:52 PM	29.4 ^°C	23.3 ^°C	69 ^%	1010.8 hPa	16.1 ^km	SSW (200°)	5.6 ^km/h				Mostly Cloudy
6:52 PM	29.4 ^°C	23.3 ^°C	69 ^%	1010.8 hPa	16.1 ^km	SSW (210°)	9.3 ^km/h				Mostly Cloudy
7:52 PM	27.2 ^°C	24.4 ^°C	85 ^%	1011.5 hPa	16.1 ^km	SSW (210°)	14.8 ^km/h				Mostly Cloudy
8:52 PM	25.6 ^°C	23.9 ^°C	90 ^%	1011.9 hPa	16.1 ^km	SW (220°)	5.6 ^km/h				Mostly Cloudy
9:52 PM	23.9 ^°C	23.3 ^°C	96 ^%	1012.9 hPa	16.1 ^km	Calm					Mostly Cloudy
10:52 PM	23.9 ^°C	21.1 ^°C	84 ^%	1012.9 hPa	16.1 ^km	Calm					Scattered Clouds
11:52 PM	23.3 ^°C	17.2 ^°C	68 ^%	1012.9 hPa	16.1 ^km	WNW (300°)	7.4 ^km/h				Partly Cloudy

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