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 - 23 NOVEMBER, 2015

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	0.7 ^°C	5 ^°C (2:52 pm)	-2.8 ^°C (6:52 am)
Dewpoint	-8.1 ^°C	-5.6 ^°C (10:52 pm)	-9.4 ^°C (5:52 am)
Humidity	53.6 ^%	69 ^% (8:52 pm)	36 ^% (12:52 pm)
Barometer	1022.7 ^hPa	1025.7 hPa (10:52 pm)	1018.6 hPa (12:52 am)
Wind Speed	13.5 ^km/h	27.8 ^km/h (12:52 pm)
Wind Gust		37 ^km/h (12:52 pm)

Weather Element	Average
Visibility	16.1 ^km
Wind Direction	WSW (260.8 °)

Weather Element	Total
Precipitation	---
Heating Degree Days	17.2 (Base 18.3)

Averaged from 24 records on 23 November, 2015

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WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 23 NOVEMBER, 2015

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Conditions
12:52 AM	0.6 ^°C	-7.2 ^°C	56 ^%	1018.6 hPa	16.1 ^km	NNW (330°)	14.8 ^km/h		Clear
1:52 AM	0 ^°C	-7.2 ^°C	59 ^%	1019 hPa	16.1 ^km	NW (310°)	14.8 ^km/h		Clear
2:52 AM	-0.6 ^°C	-7.8 ^°C	59 ^%	1019.6 hPa	16.1 ^km	NW (320°)	14.8 ^km/h		Clear
3:52 AM	-1.7 ^°C	-8.3 ^°C	61 ^%	1020 hPa	16.1 ^km	NW (320°)	13 ^km/h		Clear
4:52 AM	-1.7 ^°C	-8.9 ^°C	58 ^%	1020.3 hPa	16.1 ^km	NW (320°)	14.8 ^km/h		Clear
5:52 AM	-1.7 ^°C	-9.4 ^°C	56 ^%	1021 hPa	16.1 ^km	NW (310°)	14.8 ^km/h		Clear
6:52 AM	-2.8 ^°C	-9.4 ^°C	61 ^%	1022 hPa	16.1 ^km	WNW (300°)	9.3 ^km/h		Clear
7:52 AM	-1.1 ^°C	-9.4 ^°C	54 ^%	1023 hPa	16.1 ^km	NW (310°)	18.5 ^km/h		Clear
8:52 AM	0.6 ^°C	-8.9 ^°C	50 ^%	1023.4 hPa	16.1 ^km	WNW (300°)	20.4 ^km/h		Clear
9:52 AM	1.7 ^°C	-8.9 ^°C	46 ^%	1023.7 hPa	16.1 ^km	NW (320°)	22.2 ^km/h	35.2 ^km/h	Partly Cloudy
10:52 AM	2.8 ^°C	-8.3 ^°C	44 ^%	1023.4 hPa	16.1 ^km	NNW (330°)	24.1 ^km/h		Partly Cloudy
11:52 AM	3.9 ^°C	-8.3 ^°C	41 ^%	1022.4 hPa	16.1 ^km	NW (310°)	20.4 ^km/h		Partly Cloudy
12:52 PM	4.4 ^°C	-9.4 ^°C	36 ^%	1022.4 hPa	16.1 ^km	NW (320°)	27.8 ^km/h	37 ^km/h	Partly Cloudy
1:52 PM	4.4 ^°C	-8.9 ^°C	38 ^%	1022 hPa	16.1 ^km	North (350°)	22.2 ^km/h		Partly Cloudy
2:52 PM	5 ^°C	-8.9 ^°C	36 ^%	1022 hPa	16.1 ^km	NNW (340°)	14.8 ^km/h		Partly Cloudy
3:52 PM	4.4 ^°C	-8.9 ^°C	38 ^%	1022.4 hPa	16.1 ^km	NW (310°)	18.5 ^km/h		Clear
4:52 PM	2.8 ^°C	-8.9 ^°C	42 ^%	1023 hPa	16.1 ^km	WNW (300°)	5.6 ^km/h		Clear
5:52 PM	-1.1 ^°C	-7.2 ^°C	64 ^%	1023.4 hPa	16.1 ^km	Calm			Clear
6:52 PM	-1.7 ^°C	-7.2 ^°C	67 ^%	1024 hPa	16.1 ^km	Calm			Clear
7:52 PM	-1.7 ^°C	-7.2 ^°C	67 ^%	1024.4 hPa	16.1 ^km	SSE (150°)	5.6 ^km/h		Partly Cloudy
8:52 PM	-1.1 ^°C	-6.1 ^°C	69 ^%	1024.7 hPa	16.1 ^km	South (190°)	7.4 ^km/h		Mostly Cloudy
9:52 PM	0.6 ^°C	-6.7 ^°C	59 ^%	1025.4 hPa	16.1 ^km	SSE (160°)	7.4 ^km/h		Mostly Cloudy
10:52 PM	0 ^°C	-5.6 ^°C	66 ^%	1025.7 hPa	16.1 ^km	SSW (200°)	5.6 ^km/h		Mostly Cloudy
11:52 PM	1.1 ^°C	-6.1 ^°C	59 ^%	1025.4 hPa	16.1 ^km	SSE (160°)	7.4 ^km/h		Mostly Cloudy

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