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 MAY, 2015

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	21.1 ^°C	28.3 ^°C (1:52 pm)	11.7 ^°C (4:52 am)
Dewpoint	8.7 ^°C	11.7 ^°C (11:52 pm)	6.7 ^°C (5:52 am)
Humidity	48.3 ^%	74 ^% (4:52 am)	25 ^% (1:52 pm)
Barometer	1022 ^hPa	1024 hPa (8:52 am)	1020.7 hPa (5:52 pm)
Wind Speed	11.9 ^km/h	25.9 ^km/h (2:52 pm)
Wind Gust		35.2 ^km/h (12:52 pm)

Weather Element	Average
Visibility	16.1 ^km
Wind Direction	SSE (167.5 °)

Weather Element	Total
Precipitation	---
Cooling Degree Days	1.7 (Base 18.3)
Growing Degree Days	10 (Base 10)

Averaged from 24 records on 4 May, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 4 MAY, 2015

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Conditions
12:52 AM	13.3 ^°C	7.8 ^°C	69 ^%	1021.7 hPa	16.1 ^km	South (180°)	5.6 ^km/h		Partly Cloudy
1:52 AM	13.9 ^°C	7.2 ^°C	64 ^%	1021.7 hPa	16.1 ^km	South (170°)	5.6 ^km/h		Partly Cloudy
2:52 AM	13 ^°C	7 ^°C	67 ^%	1021.7 hPa	16.1 ^km	South (170°)	7.4 ^km/h		Partly Cloudy
3:52 AM	13.3 ^°C	7.8 ^°C	69 ^%	1021.7 hPa	16.1 ^km	Calm			Partly Cloudy
4:52 AM	11.7 ^°C	7.2 ^°C	74 ^%	1022.4 hPa	16.1 ^km	South (180°)	5.6 ^km/h		Mostly Cloudy
5:52 AM	12.2 ^°C	6.7 ^°C	69 ^%	1022.4 hPa	16.1 ^km	South (170°)	5.6 ^km/h		Partly Cloudy
6:52 AM	12.8 ^°C	7.2 ^°C	69 ^%	1023 hPa	16.1 ^km	Calm			Partly Cloudy
7:52 AM	15.6 ^°C	8.3 ^°C	62 ^%	1023.4 hPa	16.1 ^km	South (190°)	7.4 ^km/h		Partly Cloudy
8:52 AM	18.9 ^°C	8.9 ^°C	52 ^%	1024 hPa	16.1 ^km	SSW (200°)	9.3 ^km/h		Clear
9:52 AM	21.7 ^°C	10 ^°C	47 ^%	1024 hPa	16.1 ^km	South (170°)	9.3 ^km/h		Clear
10:52 AM	23.9 ^°C	10.6 ^°C	43 ^%	1023.7 hPa	16.1 ^km	South (170°)	11.1 ^km/h		Partly Cloudy
11:52 AM	26.1 ^°C	10.6 ^°C	38 ^%	1023.4 hPa	16.1 ^km	South (180°)	14.8 ^km/h	29.6 ^km/h	Partly Cloudy
12:52 PM	27.2 ^°C	7.2 ^°C	28 ^%	1022.7 hPa	16.1 ^km	South (180°)	20.4 ^km/h	35.2 ^km/h	Scattered Clouds
1:52 PM	28.3 ^°C	6.7 ^°C	25 ^%	1022.4 hPa	16.1 ^km	SW (220°)	20.4 ^km/h		Scattered Clouds
2:52 PM	28.3 ^°C	7.8 ^°C	27 ^%	1022 hPa	16.1 ^km	SSW (210°)	25.9 ^km/h	31.5 ^km/h	Scattered Clouds
3:52 PM	28.3 ^°C	8.3 ^°C	28 ^%	1021.3 hPa	16.1 ^km	South (180°)	20.4 ^km/h	33.3 ^km/h	Scattered Clouds
4:52 PM	28 ^°C	9 ^°C	30 ^%	1021 hPa	16.1 ^km	SSW (200°)	20.4 ^km/h	29.6 ^km/h	Partly Cloudy
5:52 PM	27.8 ^°C	9.4 ^°C	31 ^%	1020.7 hPa	16.1 ^km	South (170°)	16.7 ^km/h		Scattered Clouds
6:52 PM	26.7 ^°C	9.4 ^°C	34 ^%	1020.7 hPa	16.1 ^km	South (180°)	18.5 ^km/h	35.2 ^km/h	Clear
7:52 PM	24.4 ^°C	10 ^°C	40 ^%	1021 hPa	16.1 ^km	South (190°)	11.1 ^km/h		Mostly Cloudy
8:52 PM	23.9 ^°C	10 ^°C	41 ^%	1021.3 hPa	16.1 ^km	South (170°)	9.3 ^km/h		Scattered Clouds
9:52 PM	23.3 ^°C	10 ^°C	43 ^%	1021.7 hPa	16.1 ^km	South (170°)	11.1 ^km/h		Scattered Clouds
10:52 PM	21.7 ^°C	11.1 ^°C	51 ^%	1022 hPa	16.1 ^km	South (180°)	13 ^km/h		Partly Cloudy
11:52 PM	20.6 ^°C	11.7 ^°C	57 ^%	1022.4 hPa	16.1 ^km	South (190°)	14.8 ^km/h		Partly Cloudy

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