POTOMAC, MARYLAND

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Elevation: 8 meters Latitude: 39 02N Longitude: 077 15W

WEATHER

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Number of Records: 200,544; Date Range: 10/17/07 - 3/22/16

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WEATHER ALMANAC - 27 JANUARY, 2015

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	-2.7 ^°C	-1 ^°C (11:15 am)	-5 ^°C (11:55 pm)
Dewpoint	-7.2 ^°C	-6 ^°C (12:35 am)	-11 ^°C (10:55 pm)
Humidity	71.8 ^%	86 ^% (12:35 am)	59 ^% (10:55 pm)
Barometer	1010.5 ^hPa	1015.9 hPa (11:55 pm)	1007.8 hPa (4:15 am)
Wind Speed	17.5 ^km/h	31.5 ^km/h (4:35 pm)
Wind Gust		44.4 ^km/h (4:15 pm)

Weather Element	Average
Visibility	14.5 ^km
Wind Direction	NW (312.1 °)

Weather Element	Total
Precipitation	2.03 ^mm
Heating Degree Days	21.3 (Base 18.3)

Averaged from 72 records on 27 January, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 27 JANUARY, 2015

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Precipitation	Conditions
12:15 AM	-4 ^°C	-7 ^°C	80 ^%	1008.5 hPa	9.7 ^km	NNW (330°)	5.6 ^km/h			Overcast
12:35 AM	-4 ^°C	-6 ^°C	86 ^%	1008.5 hPa	8 ^km	NW (320°)	11.1 ^km/h		0.25 mm	Overcast
12:55 AM	-4 ^°C	-6 ^°C	86 ^%	1008.5 hPa	11.3 ^km	NW (320°)	11.1 ^km/h		0.25 mm	Overcast
1:15 AM	-4 ^°C	-6 ^°C	86 ^%	1008.1 hPa	12.9 ^km	NNW (330°)	9.3 ^km/h			Overcast
1:35 AM	-4 ^°C	-6 ^°C	86 ^%	1008.1 hPa	4.8 ^km	NNW (330°)	9.3 ^km/h			Overcast
1:55 AM	-4 ^°C	-6 ^°C	86 ^%	1008.1 hPa	2.9 ^km	NNW (330°)	9.3 ^km/h		0.25 mm	Overcast
2:15 AM	-4 ^°C	-6 ^°C	86 ^%	1008.1 hPa	4.8 ^km	NNW (330°)	9.3 ^km/h			Overcast
2:35 AM	-3 ^°C	-6 ^°C	80 ^%	1008.1 hPa	9.7 ^km	NNW (340°)	7.4 ^km/h			Overcast
2:55 AM	-3 ^°C	-6 ^°C	80 ^%	1008.1 hPa	12.9 ^km	NW (320°)	13 ^km/h			Overcast
3:15 AM	-3 ^°C	-6 ^°C	80 ^%	1008.1 hPa	14.5 ^km	NNW (330°)	9.3 ^km/h			Overcast
3:35 AM	-3 ^°C	-6 ^°C	80 ^%	1008.1 hPa	16.1 ^km	NW (320°)	9.3 ^km/h			Overcast
3:55 AM	-3 ^°C	-6 ^°C	80 ^%	1008.1 hPa	16.1 ^km	NNW (330°)	7.4 ^km/h			Overcast
4:15 AM	-3 ^°C	-6 ^°C	80 ^%	1007.8 hPa	9.7 ^km	NW (320°)	11.1 ^km/h			Overcast
4:35 AM	-3 ^°C	-6 ^°C	80 ^%	1007.8 hPa	9.7 ^km	NW (320°)	9.3 ^km/h		0.25 mm	Overcast
4:55 AM	-3 ^°C	-6 ^°C	80 ^%	1008.1 hPa	9.7 ^km	NW (310°)	14.8 ^km/h		0.25 mm	Overcast
5:15 AM	-3 ^°C	-6 ^°C	80 ^%	1008.1 hPa	16.1 ^km	NW (310°)	13 ^km/h			Overcast
5:35 AM	-3 ^°C	-6 ^°C	80 ^%	1008.1 hPa	16.1 ^km	NW (320°)	9.3 ^km/h			Overcast
5:55 AM	-3 ^°C	-6 ^°C	80 ^%	1008.5 hPa	16.1 ^km	NNW (340°)	11.1 ^km/h			Overcast
6:15 AM	-3 ^°C	-6 ^°C	80 ^%	1008.5 hPa	16.1 ^km	NW (310°)	11.1 ^km/h			Overcast
6:35 AM	-3 ^°C	-6 ^°C	80 ^%	1008.8 hPa	16.1 ^km	NNW (330°)	9.3 ^km/h			Overcast
6:55 AM	-3 ^°C	-7 ^°C	74 ^%	1009.1 hPa	16.1 ^km	NNW (330°)	5.6 ^km/h			Overcast
7:15 AM	-3 ^°C	-7 ^°C	74 ^%	1009.5 hPa	4 ^km	NNW (330°)	11.1 ^km/h			Overcast
7:35 AM	-3 ^°C	-7 ^°C	74 ^%	1009.8 hPa	6.4 ^km	NW (320°)	5.6 ^km/h			Overcast
7:55 AM	-3 ^°C	-7 ^°C	74 ^%	1009.8 hPa	16.1 ^km	NW (320°)	9.3 ^km/h			Overcast
8:15 AM	-3 ^°C	-7 ^°C	74 ^%	1009.8 hPa	16.1 ^km	NNW (330°)	11.1 ^km/h			Overcast
8:35 AM	-3 ^°C	-7 ^°C	74 ^%	1009.8 hPa	16.1 ^km	NW (320°)	13 ^km/h			Mostly Cloudy
8:55 AM	-3 ^°C	-7 ^°C	74 ^%	1009.8 hPa	16.1 ^km	NW (310°)	14.8 ^km/h			Mostly Cloudy
9:15 AM	-3 ^°C	-7 ^°C	74 ^%	1010.2 hPa	16.1 ^km	WNW (300°)	18.5 ^km/h			Mostly Cloudy
9:35 AM	-3 ^°C	-7 ^°C	74 ^%	1010.2 hPa	16.1 ^km	WNW (290°)	22.2 ^km/h			Overcast
9:55 AM	-3 ^°C	-7 ^°C	74 ^%	1010.5 hPa	16.1 ^km	NW (310°)	16.7 ^km/h	27.8 ^km/h		Mostly Cloudy
10:15 AM	-3 ^°C	-7 ^°C	74 ^%	1010.5 hPa	16.1 ^km	NW (310°)	18.5 ^km/h			Scattered Clouds
10:35 AM	-3 ^°C	-7 ^°C	74 ^%	1010.5 hPa	16.1 ^km	WNW (300°)	16.7 ^km/h			Partly Cloudy
10:55 AM	-2 ^°C	-6 ^°C	74 ^%	1010.5 hPa	16.1 ^km	WNW (300°)	22.2 ^km/h	29.6 ^km/h		Partly Cloudy
11:15 AM	-1 ^°C	-6 ^°C	69 ^%	1010.5 hPa	16.1 ^km	NW (320°)	11.1 ^km/h		0.25 mm	Partly Cloudy
11:35 AM	-2 ^°C	-7 ^°C	69 ^%	1010.2 hPa	16.1 ^km	NW (310°)	18.5 ^km/h	31.5 ^km/h	0.25 mm	Clear
11:55 AM	-2 ^°C	-7 ^°C	69 ^%	1010.2 hPa	16.1 ^km	WNW (300°)	22.2 ^km/h	31.5 ^km/h	0.25 mm	Partly Cloudy
12:15 PM	-1 ^°C	-7 ^°C	64 ^%	1010.2 hPa	16.1 ^km	NW (310°)	22.2 ^km/h	31.5 ^km/h		Scattered Clouds
12:35 PM	-1 ^°C	-7 ^°C	64 ^%	1009.8 hPa	16.1 ^km	WNW (300°)	22.2 ^km/h			Overcast
12:55 PM	-1 ^°C	-6 ^°C	69 ^%	1009.8 hPa	16.1 ^km	NW (320°)	11.1 ^km/h			Overcast
1:15 PM	-1 ^°C	-6 ^°C	69 ^%	1009.8 hPa	16.1 ^km	WNW (300°)	18.5 ^km/h	25.9 ^km/h		Overcast
1:35 PM	-1 ^°C	-6 ^°C	69 ^%	1009.5 hPa	16.1 ^km	WNW (300°)	25.9 ^km/h			Overcast
1:55 PM	-1 ^°C	-6 ^°C	69 ^%	1009.8 hPa	16.1 ^km	NNW (330°)	13 ^km/h			Overcast
2:15 PM	-1 ^°C	-6 ^°C	69 ^%	1009.8 hPa	16.1 ^km	WNW (300°)	24.1 ^km/h			Mostly Cloudy
2:35 PM	-1 ^°C	-6 ^°C	69 ^%	1009.8 hPa	16.1 ^km	NW (310°)	16.7 ^km/h			Overcast
2:55 PM	-1 ^°C	-6 ^°C	69 ^%	1009.8 hPa	16.1 ^km	WNW (300°)	18.5 ^km/h	27.8 ^km/h		Overcast
3:15 PM	-1 ^°C	-7 ^°C	64 ^%	1010.2 hPa	16.1 ^km	WNW (300°)	27.8 ^km/h	37 ^km/h		Overcast
3:35 PM	-1 ^°C	-7 ^°C	64 ^%	1010.5 hPa	16.1 ^km	WNW (300°)	24.1 ^km/h	35.2 ^km/h		Mostly Cloudy
3:55 PM	-1 ^°C	-7 ^°C	64 ^%	1010.8 hPa	16.1 ^km	NW (310°)	18.5 ^km/h	33.3 ^km/h		Overcast
4:15 PM	-1 ^°C	-7 ^°C	64 ^%	1010.8 hPa	16.1 ^km	NW (310°)	24.1 ^km/h	44.4 ^km/h		Overcast
4:35 PM	-2 ^°C	-7 ^°C	69 ^%	1010.8 hPa	16.1 ^km	WNW (300°)	31.5 ^km/h	42.6 ^km/h		Overcast
4:55 PM	-2 ^°C	-7 ^°C	69 ^%	1011.2 hPa	16.1 ^km	NW (310°)	24.1 ^km/h	38.9 ^km/h		Mostly Cloudy
5:15 PM	-2 ^°C	-7 ^°C	69 ^%	1011.2 hPa	16.1 ^km	WNW (300°)	24.1 ^km/h	33.3 ^km/h		Partly Cloudy
5:35 PM	-2 ^°C	-7 ^°C	69 ^%	1011.2 hPa	16.1 ^km	WNW (300°)	27.8 ^km/h			Partly Cloudy
5:55 PM	-2 ^°C	-7 ^°C	69 ^%	1011.5 hPa	16.1 ^km	WNW (300°)	24.1 ^km/h	37 ^km/h		Clear
6:15 PM	-2 ^°C	-7 ^°C	69 ^%	1011.9 hPa	16.1 ^km	WNW (300°)	24.1 ^km/h	44.4 ^km/h		Clear
6:35 PM	-2 ^°C	-7 ^°C	69 ^%	1011.9 hPa	16.1 ^km	WNW (300°)	27.8 ^km/h	38.9 ^km/h		Clear
6:55 PM	-2 ^°C	-8 ^°C	64 ^%	1012.2 hPa	16.1 ^km	WNW (300°)	25.9 ^km/h	40.7 ^km/h		Clear
7:15 PM	-3 ^°C	-8 ^°C	69 ^%	1012.5 hPa	16.1 ^km	NW (310°)	22.2 ^km/h	37 ^km/h		Clear
7:35 PM	-3 ^°C	-9 ^°C	64 ^%	1012.5 hPa	16.1 ^km	WNW (300°)	25.9 ^km/h	42.6 ^km/h		Clear
7:55 PM	-3 ^°C	-9 ^°C	64 ^%	1012.5 hPa	16.1 ^km	WNW (300°)	31.5 ^km/h	42.6 ^km/h		Clear
8:15 PM	-3 ^°C	-9 ^°C	64 ^%	1013.2 hPa	16.1 ^km	WNW (300°)	27.8 ^km/h	37 ^km/h		Clear
8:35 PM	-3 ^°C	-9 ^°C	64 ^%	1013.2 hPa	16.1 ^km	WNW (300°)	27.8 ^km/h	44.4 ^km/h		Clear
8:55 PM	-3 ^°C	-9 ^°C	64 ^%	1013.2 hPa	16.1 ^km	WNW (300°)	27.8 ^km/h	35.2 ^km/h		Clear
9:15 PM	-4 ^°C	-9 ^°C	69 ^%	1013.5 hPa	16.1 ^km	WNW (300°)	24.1 ^km/h	33.3 ^km/h		Clear
9:35 PM	-4 ^°C	-10 ^°C	64 ^%	1013.9 hPa	16.1 ^km	NW (310°)	25.9 ^km/h	37 ^km/h		Clear
9:55 PM	-4 ^°C	-10 ^°C	64 ^%	1014.2 hPa	16.1 ^km	WNW (300°)	24.1 ^km/h	31.5 ^km/h		Clear
10:15 PM	-4 ^°C	-10 ^°C	64 ^%	1014.6 hPa	16.1 ^km	NW (310°)	13 ^km/h			Clear
10:35 PM	-4 ^°C	-10 ^°C	64 ^%	1014.9 hPa	16.1 ^km	NW (320°)	13 ^km/h	25.9 ^km/h		Clear
10:55 PM	-4 ^°C	-11 ^°C	59 ^%	1015.2 hPa	16.1 ^km	NW (310°)	16.7 ^km/h	35.2 ^km/h		Clear
11:15 PM	-4 ^°C	-11 ^°C	59 ^%	1015.6 hPa	16.1 ^km	NW (310°)	20.4 ^km/h			Clear
11:35 PM	-4 ^°C	-11 ^°C	59 ^%	1015.6 hPa	16.1 ^km	NW (310°)	18.5 ^km/h	27.8 ^km/h		Clear
11:55 PM	-5 ^°C	-11 ^°C	63 ^%	1015.9 hPa	16.1 ^km	WNW (300°)	24.1 ^km/h	31.5 ^km/h		Clear

Hourly data recorded from KGAI, located 0 kilometers away from Potomac, Maryland