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 - 1 MARCH, 2015

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	-3.7 ^°C	-1 ^°C (4:35 pm)	-9 ^°C (1:55 am)
Dewpoint	-7.4 ^°C	-2 ^°C (8:15 pm)	-16 ^°C (1:55 am)
Humidity	76.7 ^%	93 ^% (3:55 pm)	54 ^% (4:55 am)
Barometer	1033.2 ^hPa	1040.6 hPa (1:15 am)	1022.7 hPa (11:35 pm)
Wind Speed	2.1 ^km/h	14.8 ^km/h (10:15 am)

Weather Element	Average
Visibility	10.3 ^km
Wind Direction	NNE (35.6 °)

Weather Element	Total
Precipitation	13.72 ^mm
Heating Degree Days	23.3 (Base 18.3)

Averaged from 72 records on 1 March, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 1 MARCH, 2015

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Precipitation	Conditions
12:15 AM	-8 ^°C	-15 ^°C	58 ^%	1040.3 hPa	16.1 ^km	ESE (120°)	5.6 ^km/h		Clear
12:35 AM	-8 ^°C	-15 ^°C	58 ^%	1040.3 hPa	16.1 ^km	ESE (120°)	7.4 ^km/h		Clear
12:55 AM	-8 ^°C	-15 ^°C	58 ^%	1040.3 hPa	16.1 ^km	Calm			Clear
1:15 AM	-8 ^°C	-15 ^°C	58 ^%	1040.6 hPa	16.1 ^km	Calm			Clear
1:35 AM	-8 ^°C	-14 ^°C	63 ^%	1040.6 hPa	16.1 ^km	Calm			Clear
1:55 AM	-9 ^°C	-16 ^°C	58 ^%	1040.3 hPa	16.1 ^km	Calm			Scattered Clouds
2:15 AM	-8 ^°C	-14 ^°C	63 ^%	1040 hPa	16.1 ^km	Calm			Overcast
2:35 AM	-8 ^°C	-13 ^°C	68 ^%	1040 hPa	16.1 ^km	Calm			Overcast
2:55 AM	-7 ^°C	-13 ^°C	63 ^%	1039.6 hPa	16.1 ^km	Calm			Overcast
3:15 AM	-7 ^°C	-12 ^°C	68 ^%	1039.3 hPa	16.1 ^km	Calm			Mostly Cloudy
3:35 AM	-7 ^°C	-12 ^°C	68 ^%	1038.9 hPa	16.1 ^km	Calm			Mostly Cloudy
3:55 AM	-6 ^°C	-13 ^°C	58 ^%	1038.6 hPa	16.1 ^km	Calm			Partly Cloudy
4:15 AM	-6 ^°C	-13 ^°C	58 ^%	1038.3 hPa	16.1 ^km	ESE (110°)	5.6 ^km/h		Clear
4:35 AM	-6 ^°C	-13 ^°C	58 ^%	1038.3 hPa	16.1 ^km	Calm			Clear
4:55 AM	-6 ^°C	-14 ^°C	54 ^%	1037.9 hPa	16.1 ^km	Calm			Clear
5:15 AM	-6 ^°C	-13 ^°C	58 ^%	1037.9 hPa	16.1 ^km	Calm			Clear
5:35 AM	-6 ^°C	-13 ^°C	58 ^%	1038.3 hPa	16.1 ^km	Calm			Partly Cloudy
5:55 AM	-7 ^°C	-13 ^°C	63 ^%	1038.6 hPa	16.1 ^km	Calm			Clear
6:15 AM	-7 ^°C	-13 ^°C	63 ^%	1038.6 hPa	16.1 ^km	Calm			Clear
6:35 AM	-6 ^°C	-13 ^°C	58 ^%	1038.3 hPa	16.1 ^km	Calm			Clear
6:55 AM	-6 ^°C	-12 ^°C	63 ^%	1037.9 hPa	16.1 ^km	Calm			Clear
7:15 AM	-6 ^°C	-12 ^°C	63 ^%	1037.9 hPa	16.1 ^km	Calm			Clear
7:35 AM	-6 ^°C	-12 ^°C	63 ^%	1037.9 hPa	16.1 ^km	ESE (120°)	7.4 ^km/h		Mostly Cloudy
7:55 AM	-6 ^°C	-12 ^°C	63 ^%	1037.9 hPa	16.1 ^km	SE (130°)	5.6 ^km/h		Overcast
8:15 AM	-5 ^°C	-11 ^°C	63 ^%	1037.9 hPa	16.1 ^km	SE (130°)	5.6 ^km/h		Overcast
8:35 AM	-5 ^°C	-12 ^°C	59 ^%	1038.3 hPa	16.1 ^km	SE (130°)	5.6 ^km/h		Overcast
8:55 AM	-4 ^°C	-11 ^°C	59 ^%	1038.3 hPa	1.9 ^km	SSW (200°)	5.6 ^km/h		Overcast
9:15 AM	-5 ^°C	-9 ^°C	74 ^%	1037.9 hPa	1.6 ^km	South (190°)	9.3 ^km/h		Overcast
9:35 AM	-5 ^°C	-8 ^°C	80 ^%	1037.3 hPa	1.3 ^km	SSE (160°)	11.1 ^km/h		Overcast
9:55 AM	-5 ^°C	-8 ^°C	80 ^%	1036.9 hPa	1.9 ^km	SSE (160°)	11.1 ^km/h		Overcast
10:15 AM	-4 ^°C	-8 ^°C	74 ^%	1036.6 hPa	4 ^km	SSE (160°)	14.8 ^km/h		Overcast
10:35 AM	-4 ^°C	-7 ^°C	80 ^%	1036.2 hPa	6.4 ^km	SSE (150°)	13 ^km/h		Mostly Cloudy
10:55 AM	-4 ^°C	-7 ^°C	80 ^%	1036.2 hPa	9.7 ^km	South (170°)	13 ^km/h		Overcast
11:15 AM	-3 ^°C	-6 ^°C	80 ^%	1035.9 hPa	6.4 ^km	SSE (160°)	11.1 ^km/h		Overcast
11:35 AM	-3 ^°C	-6 ^°C	80 ^%	1035.6 hPa	8 ^km	South (170°)	11.1 ^km/h		Overcast
11:55 AM	-3 ^°C	-6 ^°C	80 ^%	1035.6 hPa	8 ^km	South (180°)	5.6 ^km/h		Overcast
12:15 PM	-3 ^°C	-6 ^°C	80 ^%	1034.9 hPa	1.9 ^km	Calm			Overcast
12:35 PM	-3 ^°C	-5 ^°C	86 ^%	1034.5 hPa	2.9 ^km	Calm			Overcast
12:55 PM	-2 ^°C	-4 ^°C	86 ^%	1033.5 hPa	6.4 ^km	Calm			Overcast
1:15 PM	-2 ^°C	-5 ^°C	80 ^%	1032.8 hPa	8 ^km	Calm			Overcast
1:35 PM	-2 ^°C	-4 ^°C	86 ^%	1032.2 hPa	8 ^km	Calm			Overcast
1:55 PM	-2 ^°C	-4 ^°C	86 ^%	1031.2 hPa	8 ^km	Calm		0.25 mm	Overcast
2:15 PM	-2 ^°C	-4 ^°C	86 ^%	1030.8 hPa	8 ^km	Calm		0.25 mm	Overcast
2:35 PM	-2 ^°C	-4 ^°C	86 ^%	1030.8 hPa	8 ^km	Calm		0.76 mm	Overcast
2:55 PM	-2 ^°C	-4 ^°C	86 ^%	1030.5 hPa	11.3 ^km	Calm		1.02 mm	Overcast
3:15 PM	-2 ^°C	-4 ^°C	86 ^%	1030.1 hPa	14.5 ^km	Calm		0.25 mm	Overcast
3:35 PM	-2 ^°C	-4 ^°C	86 ^%	1029.8 hPa	12.9 ^km	Calm		0.51 mm	Overcast
3:55 PM	-2 ^°C	-3 ^°C	93 ^%	1029.1 hPa	6.4 ^km	Calm		0.76 mm	Overcast
4:15 PM	-2 ^°C	-3 ^°C	93 ^%	1028.4 hPa	4.8 ^km	Calm		1.02 mm	Overcast
4:35 PM	-1 ^°C	-3 ^°C	86 ^%	1028.8 hPa	6.4 ^km	Calm		1.52 mm	Overcast
4:55 PM	-1 ^°C	-3 ^°C	86 ^%	1028.8 hPa	4.8 ^km	Calm		2.03 mm	Overcast
5:15 PM	-1 ^°C	-3 ^°C	86 ^%	1028.4 hPa	4 ^km	Calm		0.51 mm	Overcast
5:35 PM	-1 ^°C	-3 ^°C	86 ^%	1027.8 hPa	6.4 ^km	Calm		1.02 mm	Overcast
5:55 PM	-1 ^°C	-3 ^°C	86 ^%	1027.4 hPa	8 ^km	Calm		1.27 mm	Overcast
6:15 PM	-1 ^°C	-3 ^°C	86 ^%	1027.1 hPa	8 ^km	Calm		0.25 mm	Overcast
6:35 PM	-1 ^°C	-3 ^°C	86 ^%	1026.8 hPa	14.5 ^km	Calm		0.51 mm	Overcast
6:55 PM	-1 ^°C	-3 ^°C	86 ^%	1026.8 hPa	16.1 ^km	Calm		0.76 mm	Overcast
7:15 PM	-1 ^°C	-3 ^°C	86 ^%	1026.8 hPa	16.1 ^km	Calm			Overcast
7:35 PM	-1 ^°C	-3 ^°C	86 ^%	1026.4 hPa	16.1 ^km	Calm			Overcast
7:55 PM	-1 ^°C	-3 ^°C	86 ^%	1026.1 hPa	12.9 ^km	Calm			Overcast
8:15 PM	-1 ^°C	-2 ^°C	93 ^%	1025.4 hPa	9.7 ^km	Calm		0.25 mm	Overcast
8:35 PM	-1 ^°C	-2 ^°C	93 ^%	1025.1 hPa	8 ^km	Calm		0.25 mm	Overcast
8:55 PM	-1 ^°C	-3 ^°C	86 ^%	1025.1 hPa	8 ^km	Calm		0.25 mm	Overcast
9:15 PM	-1 ^°C	-3 ^°C	86 ^%	1024.4 hPa	8 ^km	Calm			Overcast
9:35 PM	-1 ^°C	-2 ^°C	93 ^%	1024.4 hPa	6.4 ^km	Calm			Overcast
9:55 PM	-1 ^°C	-2 ^°C	93 ^%	1024.7 hPa	4.8 ^km	Calm			Overcast
10:15 PM	-1 ^°C	-2 ^°C	93 ^%	1024.4 hPa	3.2 ^km	Calm			Overcast
10:35 PM	-1 ^°C	-2 ^°C	93 ^%	1024 hPa	2.4 ^km	Calm			Overcast
10:55 PM	-1 ^°C	-2 ^°C	93 ^%	1023.7 hPa	1.6 ^km	Calm			Overcast
11:15 PM	-1 ^°C	-2 ^°C	93 ^%	1023 hPa	1.3 ^km	Calm			Overcast
11:35 PM	-1 ^°C	-2 ^°C	93 ^%	1022.7 hPa	0.8 ^km	Calm			Overcast
11:55 PM	-1 ^°C	-2 ^°C	93 ^%	1022.7 hPa	0.8 ^km	Calm		0.25 mm	Overcast

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