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 - 5 JULY, 2015

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	22.3 ^°C	27.2 ^°C (4:52 pm)	18.9 ^°C (3:52 am)
Dewpoint	19.6 ^°C	21.1 ^°C (8:52 pm)	18 ^°C (5:01 am)
Humidity	85 ^%	100 ^% (5:36 am)	65 ^% (4:52 pm)
Barometer	1019.6 ^hPa	1021.3 hPa (9:27 am)	1017.3 hPa (12:52 am)
Wind Speed	4.8 ^km/h	9.3 ^km/h (12:09 am)

Weather Element	Average
Visibility	9.7 ^km
Wind Direction	ENE (81.2 °)

Weather Element	Total
Precipitation	0.51 ^mm
Cooling Degree Days	4.7 (Base 18.3)
Growing Degree Days	13.1 (Base 10)

Averaged from 34 records on 5 July, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 5 JULY, 2015

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Precipitation	Events	Conditions
12:09 AM	22 ^°C	21 ^°C	94 ^%	1017.6 hPa	3.2 ^km	North (10°)	9.3 ^km/h			Mostly Cloudy
12:24 AM	21 ^°C	20 ^°C	94 ^%	1017.6 hPa	4 ^km	North (10°)	5.6 ^km/h			Scattered Clouds
12:52 AM	20.6 ^°C	19.4 ^°C	93 ^%	1017.3 hPa	4.8 ^km	Calm				Mostly Cloudy
1:52 AM	20.6 ^°C	18.9 ^°C	90 ^%	1017.6 hPa	8 ^km	North (360°)	7.4 ^km/h			Mostly Cloudy
2:08 AM	21 ^°C	19 ^°C	88 ^%	1017.6 hPa	9.7 ^km	NNE (20°)	9.3 ^km/h			Mostly Cloudy
2:52 AM	20 ^°C	18.9 ^°C	93 ^%	1017.9 hPa	8 ^km	NE (40°)	5.6 ^km/h			Scattered Clouds
3:52 AM	18.9 ^°C	18.3 ^°C	96 ^%	1018.3 hPa	6.4 ^km	Calm				Mostly Cloudy
4:52 AM	19.4 ^°C	18.3 ^°C	93 ^%	1018.3 hPa	4.8 ^km	North (360°)	7.4 ^km/h		Fog	Mostly Cloudy
5:01 AM	19 ^°C	18 ^°C	94 ^%	1018.6 hPa	4 ^km	NNE (20°)	7.4 ^km/h		Fog	Mostly Cloudy
5:15 AM	19 ^°C	18 ^°C	94 ^%	1018.6 hPa	3.2 ^km	NNE (20°)	5.6 ^km/h		Fog	Mostly Cloudy
5:36 AM	19 ^°C	19 ^°C	100 ^%	1019 hPa	1.3 ^km	Calm				Overcast
5:52 AM	18.9 ^°C	18.9 ^°C	100 ^%	1019 hPa	0.8 ^km	NE (50°)	5.6 ^km/h		Fog	Fog
6:52 AM	18.9 ^°C	18.3 ^°C	96 ^%	1020 hPa	0.8 ^km	NNE (20°)	5.6 ^km/h		Fog	Fog
7:52 AM	18.9 ^°C	18.3 ^°C	96 ^%	1020.7 hPa	1.6 ^km	NNE (20°)	9.3 ^km/h			Overcast
8:15 AM	19 ^°C	18 ^°C	94 ^%	1021 hPa	3.2 ^km	Calm				Overcast
8:52 AM	19.4 ^°C	18.3 ^°C	93 ^%	1021 hPa	3.2 ^km	Calm				Overcast
9:27 AM	21 ^°C	19 ^°C	88 ^%	1021.3 hPa	4 ^km	Calm				Overcast
9:52 AM	21.1 ^°C	18.9 ^°C	87 ^%	1021 hPa	6.4 ^km	Calm				Mostly Cloudy
10:52 AM	22.2 ^°C	18.9 ^°C	81 ^%	1021.3 hPa	11.3 ^km	Calm				Overcast
11:07 AM	22 ^°C	19 ^°C	83 ^%	1021.3 hPa	16.1 ^km	North (10°)	5.6 ^km/h			Overcast
11:52 AM	23.9 ^°C	20 ^°C	79 ^%	1021.3 hPa	16.1 ^km	NNW (330°)	5.6 ^km/h			Mostly Cloudy
12:31 PM	24 ^°C	19 ^°C	73 ^%	1021.3 hPa	16.1 ^km	Calm				Mostly Cloudy
12:52 PM	25.6 ^°C	20.6 ^°C	74 ^%	1021 hPa	16.1 ^km	Variable	5.6 ^km/h			Mostly Cloudy
1:52 PM	26.7 ^°C	20.6 ^°C	69 ^%	1020.7 hPa	16.1 ^km	SSW (200°)	9.3 ^km/h			Overcast
2:52 PM	26.7 ^°C	20.6 ^°C	69 ^%	1020 hPa	16.1 ^km	Variable	5.6 ^km/h			Mostly Cloudy
3:52 PM	26.7 ^°C	20.6 ^°C	69 ^%	1019.6 hPa	16.1 ^km	SSE (160°)	7.4 ^km/h			Mostly Cloudy
4:52 PM	27.2 ^°C	20 ^°C	65 ^%	1019.3 hPa	16.1 ^km	South (170°)	5.6 ^km/h			Mostly Cloudy
5:52 PM	26.7 ^°C	20.6 ^°C	69 ^%	1019 hPa	16.1 ^km	South (180°)	7.4 ^km/h			Overcast
6:52 PM	26.7 ^°C	20.6 ^°C	69 ^%	1019 hPa	16.1 ^km	South (170°)	5.6 ^km/h			Overcast
7:52 PM	25.6 ^°C	20.6 ^°C	74 ^%	1019.6 hPa	16.1 ^km	SSE (160°)	5.6 ^km/h			Overcast
8:52 PM	25 ^°C	21.1 ^°C	79 ^%	1019.3 hPa	16.1 ^km	SSE (160°)	5.6 ^km/h			Overcast
9:52 PM	24.4 ^°C	21.1 ^°C	82 ^%	1020 hPa	16.1 ^km	ESE (120°)	5.6 ^km/h			Overcast
10:52 PM	24.4 ^°C	21.1 ^°C	82 ^%	1020.3 hPa	16.1 ^km	South (170°)	9.3 ^km/h			Mostly Cloudy
11:52 PM	22.8 ^°C	21.1 ^°C	90 ^%	1020 hPa	11.3 ^km	Calm		0.51 mm	Rain	Light Rain

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