HERNDON, VIRGINIA

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Elevation: 98 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 AUGUST, 2014

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	22.2 ^°C	24.4 ^°C (11:52 am)	18.9 ^°C (2:52 am)
Dewpoint	17.5 ^°C	19 ^°C (10:52 pm)	15 ^°C (12:52 pm)
Humidity	75.3 ^%	87 ^% (8:52 pm)	60 ^% (11:52 am)
Barometer	1021.3 ^hPa	1022.7 hPa (9:52 am)	1020 hPa (1:52 pm)
Wind Speed	8.2 ^km/h	16.7 ^km/h (12:52 pm)

Weather Element	Average
Visibility	16.1 ^km
Wind Direction	SSE (173.8 °)

Weather Element	Total
Precipitation	---
Cooling Degree Days	3.3 (Base 18.3)
Growing Degree Days	11.7 (Base 10)

Averaged from 24 records on 1 August, 2014

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 1 AUGUST, 2014

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Precipitation	Events	Conditions
12:52 AM	21 ^°C	18 ^°C	83 ^%	1020.7 hPa	16.1 ^km	South (190°)	7.4 ^km/h			Mostly Cloudy
1:52 AM	21.1 ^°C	18.3 ^°C	84 ^%	1020.7 hPa	16.1 ^km	South (190°)	7.4 ^km/h			Mostly Cloudy
2:52 AM	21.7 ^°C	18.9 ^°C	84 ^%	1020.3 hPa	16.1 ^km	South (180°)	7.4 ^km/h			Mostly Cloudy
3:52 AM	21.1 ^°C	18.9 ^°C	87 ^%	1020 hPa	16.1 ^km	South (170°)	7.4 ^km/h			Overcast
4:52 AM	20.6 ^°C	18.3 ^°C	87 ^%	1020 hPa	16.1 ^km	SSE (160°)	5.6 ^km/h			Overcast
5:52 AM	20.6 ^°C	18.3 ^°C	87 ^%	1020.7 hPa	16.1 ^km	South (170°)	5.6 ^km/h			Overcast
6:52 AM	21.1 ^°C	18.3 ^°C	84 ^%	1021 hPa	16.1 ^km	South (170°)	5.6 ^km/h			Overcast
7:52 AM	22 ^°C	19 ^°C	83 ^%	1021.7 hPa	16.1 ^km	South (190°)	9.3 ^km/h			Overcast
8:52 AM	22.2 ^°C	18.9 ^°C	81 ^%	1021.7 hPa	16.1 ^km	SSW (200°)	9.3 ^km/h			Overcast
9:52 AM	22.8 ^°C	18.9 ^°C	79 ^%	1021.7 hPa	16.1 ^km	SSW (210°)	13 ^km/h			Overcast
10:52 AM	23.3 ^°C	18.3 ^°C	73 ^%	1022.4 hPa	16.1 ^km	SSW (200°)	9.3 ^km/h			Overcast
11:52 AM	23.9 ^°C	17.8 ^°C	69 ^%	1022.4 hPa	16.1 ^km	South (190°)	16.7 ^km/h			Overcast
12:52 PM	23.3 ^°C	17.8 ^°C	71 ^%	1022.7 hPa	16.1 ^km	SSW (210°)	13 ^km/h	0 mm	Rain	Light Rain
1:52 PM	23.9 ^°C	17.2 ^°C	66 ^%	1022.7 hPa	16.1 ^km	South (180°)	9.3 ^km/h	0 mm		Overcast
2:52 PM	23.9 ^°C	18.3 ^°C	71 ^%	1022.4 hPa	16.1 ^km	SW (220°)	7.4 ^km/h	0 mm		Overcast
3:52 PM	23.3 ^°C	16.1 ^°C	64 ^%	1021.7 hPa	16.1 ^km	SW (220°)	5.6 ^km/h			Overcast
4:52 PM	23.9 ^°C	17.2 ^°C	66 ^%	1021.3 hPa	16.1 ^km	South (190°)	7.4 ^km/h			Overcast
5:52 PM	24.4 ^°C	16.1 ^°C	60 ^%	1021 hPa	16.1 ^km	South (170°)	7.4 ^km/h			Overcast
6:52 PM	23.3 ^°C	16.7 ^°C	66 ^%	1021 hPa	16.1 ^km	SSE (160°)	5.6 ^km/h			Overcast
7:52 PM	22.2 ^°C	15.6 ^°C	66 ^%	1021 hPa	16.1 ^km	SSE (160°)	9.3 ^km/h			Overcast
8:52 PM	21.7 ^°C	15.6 ^°C	68 ^%	1021.3 hPa	16.1 ^km	Calm				Overcast
9:52 PM	21 ^°C	16 ^°C	73 ^%	1021.7 hPa	16.1 ^km	ESE (110°)	7.4 ^km/h			Overcast
10:52 PM	20.6 ^°C	16.7 ^°C	78 ^%	1021.7 hPa	16.1 ^km	South (180°)	11.1 ^km/h			Overcast
11:52 PM	18.9 ^°C	15 ^°C	78 ^%	1021.7 hPa	16.1 ^km	SSE (150°)	9.3 ^km/h	0 mm	Rain	Light Rain

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