DULLES, 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 - 26 MAY, 2015

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	24.1 ^°C	30 ^°C (4:52 pm)	16.7 ^°C (5:52 am)
Dewpoint	16.8 ^°C	20 ^°C (8:52 pm)	13 ^°C (4:52 am)
Humidity	64.3 ^%	80 ^% (5:52 am)	51 ^% (2:52 pm)
Barometer	1022 ^hPa	1023.7 hPa (8:52 am)	1020 hPa (6:52 pm)
Wind Speed	12.1 ^km/h	18.5 ^km/h (7:52 am)
Wind Gust		25.9 ^km/h (1:52 pm)

Weather Element	Average
Visibility	16.1 ^km
Wind Direction	SSE (169.6 °)

Weather Element	Total
Precipitation	---
Cooling Degree Days	5.1 (Base 18.3)
Growing Degree Days	13.4 (Base 10)

Averaged from 24 records on 26 May, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 26 MAY, 2015

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Precipitation	Conditions
12:52 AM	20 ^°C	13.3 ^°C	65 ^%	1022.4 hPa	16.1 ^km	South (190°)	9.3 ^km/h			Clear
1:52 AM	18.9 ^°C	13.3 ^°C	70 ^%	1022.4 hPa	16.1 ^km	South (180°)	7.4 ^km/h			Clear
2:52 AM	19.4 ^°C	13.3 ^°C	68 ^%	1022.4 hPa	16.1 ^km	SSE (160°)	11.1 ^km/h			Clear
3:52 AM	18.9 ^°C	13.3 ^°C	70 ^%	1022 hPa	16.1 ^km	South (180°)	16.7 ^km/h			Clear
4:52 AM	18 ^°C	13 ^°C	73 ^%	1022.7 hPa	16.1 ^km	SSW (200°)	13 ^km/h			Clear
5:52 AM	16.7 ^°C	13.3 ^°C	80 ^%	1022.7 hPa	16.1 ^km	South (180°)	9.3 ^km/h			Scattered Clouds
6:52 AM	17.8 ^°C	13.9 ^°C	78 ^%	1023 hPa	16.1 ^km	South (180°)	11.1 ^km/h			Scattered Clouds
7:52 AM	19.4 ^°C	15 ^°C	76 ^%	1023.4 hPa	16.1 ^km	South (180°)	18.5 ^km/h			Mostly Cloudy
8:52 AM	21.1 ^°C	15.6 ^°C	71 ^%	1023.7 hPa	16.1 ^km	SSW (200°)	14.8 ^km/h			Mostly Cloudy
9:52 AM	23.3 ^°C	16.1 ^°C	64 ^%	1023.4 hPa	16.1 ^km	South (170°)	13 ^km/h			Scattered Clouds
10:52 AM	26 ^°C	17 ^°C	57 ^%	1023.7 hPa	16.1 ^km	SW (230°)	13 ^km/h			Mostly Cloudy
11:52 AM	27.2 ^°C	18.3 ^°C	58 ^%	1023 hPa	16.1 ^km	South (170°)	14.8 ^km/h			Mostly Cloudy
12:52 PM	28.3 ^°C	18.9 ^°C	56 ^%	1022.7 hPa	16.1 ^km	Variable	11.1 ^km/h			Mostly Cloudy
1:52 PM	28.9 ^°C	18.9 ^°C	55 ^%	1022.4 hPa	16.1 ^km	Variable	7.4 ^km/h	25.9 ^km/h		Mostly Cloudy
2:52 PM	29 ^°C	18 ^°C	51 ^%	1022 hPa	16.1 ^km	SSW (210°)	14.8 ^km/h			Mostly Cloudy
3:52 PM	29.4 ^°C	18.9 ^°C	53 ^%	1021 hPa	16.1 ^km	SSW (200°)	14.8 ^km/h			Mostly Cloudy
4:52 PM	30 ^°C	19 ^°C	51 ^%	1020.7 hPa	16.1 ^km	South (180°)	11.1 ^km/h			Mostly Cloudy
5:52 PM	29.4 ^°C	18.9 ^°C	53 ^%	1020.3 hPa	16.1 ^km	South (180°)	14.8 ^km/h			Mostly Cloudy
6:52 PM	28.3 ^°C	18.9 ^°C	56 ^%	1020 hPa	16.1 ^km	South (190°)	16.7 ^km/h			Mostly Cloudy
7:52 PM	27.2 ^°C	18.9 ^°C	60 ^%	1020.3 hPa	16.1 ^km	South (190°)	13 ^km/h			Mostly Cloudy
8:52 PM	25.6 ^°C	20 ^°C	71 ^%	1020.3 hPa	16.1 ^km	South (180°)	5.6 ^km/h		0 mm	Mostly Cloudy
9:52 PM	25.6 ^°C	19.4 ^°C	68 ^%	1020.3 hPa	16.1 ^km	SSE (160°)	9.3 ^km/h			Mostly Cloudy
10:52 PM	25.6 ^°C	19.4 ^°C	68 ^%	1020.7 hPa	16.1 ^km	South (180°)	9.3 ^km/h			Mostly Cloudy
11:52 PM	24.4 ^°C	18.9 ^°C	71 ^%	1020.7 hPa	16.1 ^km	South (180°)	9.3 ^km/h			Scattered Clouds

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