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 - 28 FEBRUARY, 2015

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	-7.2 ^°C	-2 ^°C (3:15 pm)	-13 ^°C (4:55 am)
Dewpoint	-18.3 ^°C	-14 ^°C (10:35 pm)	-21 ^°C (5:55 am)
Humidity	43.3 ^%	63 ^% (11:35 pm)	24 ^% (2:55 pm)
Barometer	1042.3 ^hPa	1045.7 hPa (9:55 am)	1038.9 hPa (12:15 am)
Wind Speed	2.9 ^km/h	13 ^km/h (8:55 am)

Weather Element	Average
Visibility	16.1 ^km
Wind Direction	ENE (70.1 °)

Weather Element	Total
Precipitation	---
Heating Degree Days	25.8 (Base 18.3)

Averaged from 72 records on 28 February, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 28 FEBRUARY, 2015

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Conditions
12:15 AM	-8 ^°C	-18 ^°C	45 ^%	1038.9 hPa	16.1 ^km	NNW (330°)	9.3 ^km/h	Clear
12:35 AM	-9 ^°C	-18 ^°C	49 ^%	1039.3 hPa	16.1 ^km	Calm		Clear
12:55 AM	-9 ^°C	-18 ^°C	49 ^%	1039.6 hPa	16.1 ^km	Calm		Clear
1:15 AM	-9 ^°C	-18 ^°C	49 ^%	1039.6 hPa	16.1 ^km	Calm		Clear
1:35 AM	-9 ^°C	-18 ^°C	49 ^%	1040 hPa	16.1 ^km	Calm		Clear
1:55 AM	-10 ^°C	-19 ^°C	49 ^%	1040 hPa	16.1 ^km	Calm		Clear
2:15 AM	-11 ^°C	-18 ^°C	57 ^%	1040 hPa	16.1 ^km	NNW (330°)	5.6 ^km/h	Clear
2:35 AM	-11 ^°C	-18 ^°C	57 ^%	1040 hPa	16.1 ^km	Calm		Clear
2:55 AM	-10 ^°C	-18 ^°C	53 ^%	1040.3 hPa	16.1 ^km	Calm		Clear
3:15 AM	-11 ^°C	-19 ^°C	53 ^%	1040.3 hPa	16.1 ^km	NNE (20°)	5.6 ^km/h	Clear
3:35 AM	-11 ^°C	-19 ^°C	53 ^%	1040.6 hPa	16.1 ^km	Calm		Clear
3:55 AM	-12 ^°C	-19 ^°C	57 ^%	1041 hPa	16.1 ^km	Calm		Clear
4:15 AM	-11 ^°C	-18 ^°C	57 ^%	1041.3 hPa	16.1 ^km	Calm		Clear
4:35 AM	-12 ^°C	-19 ^°C	57 ^%	1041.7 hPa	16.1 ^km	Calm		Clear
4:55 AM	-13 ^°C	-20 ^°C	57 ^%	1042 hPa	16.1 ^km	NW (310°)	7.4 ^km/h	Clear
5:15 AM	-12 ^°C	-18 ^°C	62 ^%	1042.3 hPa	16.1 ^km	Calm		Clear
5:35 AM	-11 ^°C	-19 ^°C	53 ^%	1042.7 hPa	16.1 ^km	Calm		Clear
5:55 AM	-12 ^°C	-21 ^°C	48 ^%	1043 hPa	16.1 ^km	Calm		Clear
6:15 AM	-12 ^°C	-19 ^°C	57 ^%	1043 hPa	16.1 ^km	Calm		Clear
6:35 AM	-12 ^°C	-19 ^°C	57 ^%	1043 hPa	16.1 ^km	Calm		Clear
6:55 AM	-12 ^°C	-21 ^°C	48 ^%	1043.3 hPa	16.1 ^km	Calm		Clear
7:15 AM	-12 ^°C	-19 ^°C	57 ^%	1043.7 hPa	16.1 ^km	Calm		Clear
7:35 AM	-12 ^°C	-19 ^°C	57 ^%	1043.7 hPa	16.1 ^km	Calm		Clear
7:55 AM	-11 ^°C	-19 ^°C	53 ^%	1044 hPa	16.1 ^km	Calm		Clear
8:15 AM	-10 ^°C	-19 ^°C	49 ^%	1044.7 hPa	16.1 ^km	Calm		Clear
8:35 AM	-9 ^°C	-19 ^°C	45 ^%	1045 hPa	16.1 ^km	North (360°)	5.6 ^km/h	Clear
8:55 AM	-8 ^°C	-18 ^°C	45 ^%	1045 hPa	16.1 ^km	NE (40°)	13 ^km/h	Clear
9:15 AM	-8 ^°C	-19 ^°C	42 ^%	1045 hPa	16.1 ^km	NE (50°)	9.3 ^km/h	Clear
9:35 AM	-7 ^°C	-19 ^°C	39 ^%	1045.4 hPa	16.1 ^km	NNE (30°)	5.6 ^km/h	Clear
9:55 AM	-8 ^°C	-19 ^°C	42 ^%	1045.7 hPa	16.1 ^km	Calm		Clear
10:15 AM	-7 ^°C	-19 ^°C	39 ^%	1045.7 hPa	16.1 ^km	Calm		Clear
10:35 AM	-8 ^°C	-20 ^°C	38 ^%	1045.7 hPa	16.1 ^km	Calm		Clear
10:55 AM	-7 ^°C	-18 ^°C	42 ^%	1045.4 hPa	16.1 ^km	Calm		Clear
11:15 AM	-6 ^°C	-19 ^°C	36 ^%	1045.4 hPa	16.1 ^km	Calm		Clear
11:35 AM	-6 ^°C	-18 ^°C	39 ^%	1045.4 hPa	16.1 ^km	West (260°)	5.6 ^km/h	Clear
11:55 AM	-6 ^°C	-20 ^°C	33 ^%	1044.7 hPa	16.1 ^km	Calm		Clear
12:15 PM	-5 ^°C	-19 ^°C	33 ^%	1044.7 hPa	16.1 ^km	SSW (210°)	5.6 ^km/h	Clear
12:35 PM	-4 ^°C	-17 ^°C	36 ^%	1044.4 hPa	16.1 ^km	West (260°)	5.6 ^km/h	Clear
12:55 PM	-4 ^°C	-19 ^°C	31 ^%	1043.7 hPa	16.1 ^km	WNW (300°)	9.3 ^km/h	Clear
1:15 PM	-4 ^°C	-19 ^°C	31 ^%	1043.3 hPa	16.1 ^km	Calm		Clear
1:35 PM	-4 ^°C	-19 ^°C	31 ^%	1043 hPa	16.1 ^km	Calm		Clear
1:55 PM	-4 ^°C	-19 ^°C	31 ^%	1042.7 hPa	16.1 ^km	Calm		Clear
2:15 PM	-3 ^°C	-19 ^°C	29 ^%	1042.7 hPa	16.1 ^km	Calm		Clear
2:35 PM	-3 ^°C	-20 ^°C	26 ^%	1042.3 hPa	16.1 ^km	Calm		Clear
2:55 PM	-3 ^°C	-21 ^°C	24 ^%	1042.3 hPa	16.1 ^km	Calm		Clear
3:15 PM	-2 ^°C	-19 ^°C	27 ^%	1042 hPa	16.1 ^km	NE (50°)	5.6 ^km/h	Clear
3:35 PM	-2 ^°C	-19 ^°C	27 ^%	1041.7 hPa	16.1 ^km	Calm		Clear
3:55 PM	-2 ^°C	-18 ^°C	29 ^%	1042 hPa	16.1 ^km	Calm		Clear
4:15 PM	-2 ^°C	-19 ^°C	27 ^%	1042 hPa	16.1 ^km	Calm		Partly Cloudy
4:35 PM	-2 ^°C	-18 ^°C	29 ^%	1042 hPa	16.1 ^km	Calm		Partly Cloudy
4:55 PM	-3 ^°C	-19 ^°C	29 ^%	1041.7 hPa	16.1 ^km	WNW (300°)	9.3 ^km/h	Mostly Cloudy
5:15 PM	-3 ^°C	-18 ^°C	31 ^%	1042 hPa	16.1 ^km	West (260°)	7.4 ^km/h	Partly Cloudy
5:35 PM	-3 ^°C	-19 ^°C	29 ^%	1042 hPa	16.1 ^km	WNW (300°)	7.4 ^km/h	Clear
5:55 PM	-3 ^°C	-18 ^°C	31 ^%	1042 hPa	16.1 ^km	West (280°)	5.6 ^km/h	Mostly Cloudy
6:15 PM	-4 ^°C	-18 ^°C	34 ^%	1041.7 hPa	16.1 ^km	West (280°)	5.6 ^km/h	Overcast
6:35 PM	-4 ^°C	-19 ^°C	31 ^%	1042 hPa	16.1 ^km	Calm		Scattered Clouds
6:55 PM	-4 ^°C	-19 ^°C	31 ^%	1042 hPa	16.1 ^km	Calm		Clear
7:15 PM	-5 ^°C	-19 ^°C	33 ^%	1042 hPa	16.1 ^km	Calm		Clear
7:35 PM	-5 ^°C	-18 ^°C	36 ^%	1042.3 hPa	16.1 ^km	Calm		Clear
7:55 PM	-6 ^°C	-18 ^°C	39 ^%	1042.3 hPa	16.1 ^km	Calm		Clear
8:15 PM	-6 ^°C	-18 ^°C	39 ^%	1042.3 hPa	16.1 ^km	Calm		Clear
8:35 PM	-7 ^°C	-17 ^°C	46 ^%	1042.3 hPa	16.1 ^km	Calm		Clear
8:55 PM	-7 ^°C	-17 ^°C	46 ^%	1042.3 hPa	16.1 ^km	Calm		Clear
9:15 PM	-6 ^°C	-17 ^°C	42 ^%	1042.3 hPa	16.1 ^km	ESE (110°)	5.6 ^km/h	Clear
9:35 PM	-7 ^°C	-17 ^°C	46 ^%	1042 hPa	16.1 ^km	ESE (120°)	9.3 ^km/h	Clear
9:55 PM	-7 ^°C	-17 ^°C	46 ^%	1042.3 hPa	16.1 ^km	ESE (120°)	7.4 ^km/h	Clear
10:15 PM	-7 ^°C	-16 ^°C	49 ^%	1042 hPa	16.1 ^km	ESE (120°)	9.3 ^km/h	Clear
10:35 PM	-7 ^°C	-14 ^°C	58 ^%	1041.7 hPa	16.1 ^km	ESE (120°)	9.3 ^km/h	Clear
10:55 PM	-8 ^°C	-16 ^°C	53 ^%	1041.3 hPa	16.1 ^km	ESE (120°)	9.3 ^km/h	Clear
11:15 PM	-8 ^°C	-15 ^°C	58 ^%	1041.3 hPa	16.1 ^km	ESE (120°)	9.3 ^km/h	Clear
11:35 PM	-8 ^°C	-14 ^°C	63 ^%	1041 hPa	16.1 ^km	ESE (120°)	9.3 ^km/h	Clear
11:55 PM	-8 ^°C	-14 ^°C	63 ^%	1040.6 hPa	16.1 ^km	SE (130°)	7.4 ^km/h	Clear

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