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 - 15 DECEMBER, 2014

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	6.5 ^°C	13 ^°C (1:55 pm)	1 ^°C (1:55 am)
Dewpoint	2.4 ^°C	4 ^°C (9:15 am)	-1 ^°C (1:55 am)
Humidity	76.6 ^%	93 ^% (1:35 am)	54 ^% (1:55 pm)
Barometer	1019 ^hPa	1020.7 hPa (10:15 am)	1017.6 hPa (12:15 am)
Wind Speed	3.1 ^km/h	11.1 ^km/h (5:35 pm)

Weather Element	Average
Visibility	15.8 ^km
Wind Direction	ENE (62.4 °)

Weather Element	Total
Precipitation	---
Heating Degree Days	11.3 (Base 18.3)

Averaged from 72 records on 15 December, 2014

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 15 DECEMBER, 2014

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Conditions
12:15 AM	4 ^°C	2 ^°C	87 ^%	1017.6 hPa	16.1 ^km	NNW (330°)	5.6 ^km/h	Clear
12:35 AM	3 ^°C	1 ^°C	87 ^%	1017.6 hPa	16.1 ^km	Calm		Clear
12:55 AM	3 ^°C	0 ^°C	81 ^%	1017.9 hPa	16.1 ^km	Calm		Clear
1:15 AM	3 ^°C	1 ^°C	87 ^%	1017.9 hPa	16.1 ^km	Calm		Clear
1:35 AM	2 ^°C	1 ^°C	93 ^%	1018.3 hPa	16.1 ^km	Calm		Clear
1:55 AM	1 ^°C	-1 ^°C	87 ^%	1018.3 hPa	16.1 ^km	Calm		Clear
2:15 AM	2 ^°C	-1 ^°C	81 ^%	1018.6 hPa	16.1 ^km	Calm		Clear
2:35 AM	1 ^°C	-1 ^°C	87 ^%	1018.6 hPa	14.5 ^km	Calm		Clear
2:55 AM	1 ^°C	-1 ^°C	87 ^%	1018.6 hPa	14.5 ^km	Calm		Mostly Cloudy
3:15 AM	2 ^°C	0 ^°C	87 ^%	1018.6 hPa	16.1 ^km	Calm		Overcast
3:35 AM	2 ^°C	1 ^°C	93 ^%	1018.6 hPa	16.1 ^km	Calm		Overcast
3:55 AM	3 ^°C	1 ^°C	87 ^%	1018.6 hPa	16.1 ^km	Calm		Overcast
4:15 AM	3 ^°C	1 ^°C	87 ^%	1018.6 hPa	16.1 ^km	Calm		Overcast
4:35 AM	3 ^°C	2 ^°C	93 ^%	1019 hPa	16.1 ^km	Calm		Overcast
4:55 AM	3 ^°C	2 ^°C	93 ^%	1019 hPa	16.1 ^km	Calm		Overcast
5:15 AM	3 ^°C	2 ^°C	93 ^%	1019 hPa	16.1 ^km	Calm		Overcast
5:35 AM	3 ^°C	2 ^°C	93 ^%	1019.3 hPa	16.1 ^km	Calm		Overcast
5:55 AM	4 ^°C	2 ^°C	87 ^%	1019.3 hPa	16.1 ^km	Calm		Overcast
6:15 AM	3 ^°C	2 ^°C	93 ^%	1019.3 hPa	16.1 ^km	Calm		Overcast
6:35 AM	4 ^°C	2 ^°C	87 ^%	1019.6 hPa	16.1 ^km	Calm		Overcast
6:55 AM	4 ^°C	2 ^°C	87 ^%	1019.6 hPa	16.1 ^km	Calm		Overcast
7:15 AM	4 ^°C	2 ^°C	87 ^%	1020 hPa	16.1 ^km	Calm		Overcast
7:35 AM	4 ^°C	2 ^°C	87 ^%	1020 hPa	16.1 ^km	Calm		Overcast
7:55 AM	4 ^°C	2 ^°C	87 ^%	1020 hPa	16.1 ^km	Calm		Overcast
8:15 AM	4 ^°C	3 ^°C	93 ^%	1020.3 hPa	16.1 ^km	Calm		Overcast
8:35 AM	5 ^°C	3 ^°C	87 ^%	1020.3 hPa	16.1 ^km	Calm		Overcast
8:55 AM	6 ^°C	3 ^°C	81 ^%	1020 hPa	16.1 ^km	Calm		Overcast
9:15 AM	7 ^°C	4 ^°C	81 ^%	1020 hPa	16.1 ^km	Calm		Overcast
9:35 AM	8 ^°C	4 ^°C	76 ^%	1020.3 hPa	16.1 ^km	Calm		Overcast
9:55 AM	8 ^°C	4 ^°C	76 ^%	1020.3 hPa	16.1 ^km	WSW (240°)	5.6 ^km/h	Overcast
10:15 AM	9 ^°C	4 ^°C	71 ^%	1020.7 hPa	16.1 ^km	West (270°)	5.6 ^km/h	Overcast
10:35 AM	9 ^°C	4 ^°C	71 ^%	1020.3 hPa	16.1 ^km	WNW (290°)	7.4 ^km/h	Overcast
10:55 AM	10 ^°C	4 ^°C	66 ^%	1020.3 hPa	16.1 ^km	Calm		Scattered Clouds
11:15 AM	11 ^°C	4 ^°C	62 ^%	1020 hPa	16.1 ^km	West (270°)	5.6 ^km/h	Scattered Clouds
11:35 AM	11 ^°C	4 ^°C	62 ^%	1019.6 hPa	16.1 ^km	Calm		Overcast
11:55 AM	11 ^°C	4 ^°C	62 ^%	1019.3 hPa	16.1 ^km	Calm		Overcast
12:15 PM	12 ^°C	4 ^°C	58 ^%	1019 hPa	16.1 ^km	WNW (300°)	9.3 ^km/h	Scattered Clouds
12:35 PM	12 ^°C	4 ^°C	58 ^%	1018.6 hPa	16.1 ^km	Calm		Clear
12:55 PM	12 ^°C	4 ^°C	58 ^%	1018.3 hPa	16.1 ^km	SW (230°)	5.6 ^km/h	Clear
1:15 PM	12 ^°C	4 ^°C	58 ^%	1018.3 hPa	16.1 ^km	Calm		Clear
1:35 PM	12 ^°C	4 ^°C	58 ^%	1017.9 hPa	16.1 ^km	Calm		Clear
1:55 PM	13 ^°C	4 ^°C	54 ^%	1017.6 hPa	16.1 ^km	SE (140°)	7.4 ^km/h	Clear
2:15 PM	13 ^°C	4 ^°C	54 ^%	1017.6 hPa	16.1 ^km	Calm		Clear
2:35 PM	13 ^°C	4 ^°C	54 ^%	1017.6 hPa	16.1 ^km	Calm		Clear
2:55 PM	13 ^°C	4 ^°C	54 ^%	1017.6 hPa	16.1 ^km	SW (220°)	7.4 ^km/h	Clear
3:15 PM	13 ^°C	4 ^°C	54 ^%	1017.9 hPa	16.1 ^km	South (170°)	5.6 ^km/h	Clear
3:35 PM	13 ^°C	4 ^°C	54 ^%	1017.9 hPa	16.1 ^km	Calm		Clear
3:55 PM	13 ^°C	4 ^°C	54 ^%	1017.9 hPa	16.1 ^km	SSW (200°)	7.4 ^km/h	Clear
4:15 PM	12 ^°C	4 ^°C	58 ^%	1017.9 hPa	16.1 ^km	Calm		Clear
4:35 PM	12 ^°C	4 ^°C	58 ^%	1018.3 hPa	16.1 ^km	Calm		Clear
4:55 PM	11 ^°C	3 ^°C	58 ^%	1018.3 hPa	16.1 ^km	Calm		Clear
5:15 PM	9 ^°C	3 ^°C	66 ^%	1018.3 hPa	16.1 ^km	Calm		Clear
5:35 PM	9 ^°C	3 ^°C	66 ^%	1018.6 hPa	16.1 ^km	SSE (150°)	11.1 ^km/h	Clear
5:55 PM	9 ^°C	3 ^°C	66 ^%	1018.6 hPa	16.1 ^km	SE (130°)	11.1 ^km/h	Clear
6:15 PM	8 ^°C	3 ^°C	71 ^%	1019 hPa	16.1 ^km	ESE (110°)	9.3 ^km/h	Clear
6:35 PM	7 ^°C	2 ^°C	71 ^%	1019.3 hPa	16.1 ^km	ESE (110°)	11.1 ^km/h	Clear
6:55 PM	7 ^°C	2 ^°C	71 ^%	1019.3 hPa	16.1 ^km	East (100°)	9.3 ^km/h	Clear
7:15 PM	7 ^°C	2 ^°C	71 ^%	1019.3 hPa	16.1 ^km	East (100°)	9.3 ^km/h	Clear
7:35 PM	6 ^°C	2 ^°C	76 ^%	1019.3 hPa	16.1 ^km	ESE (110°)	9.3 ^km/h	Clear
7:55 PM	6 ^°C	2 ^°C	76 ^%	1019.6 hPa	16.1 ^km	ESE (110°)	9.3 ^km/h	Clear
8:15 PM	5 ^°C	2 ^°C	81 ^%	1019.6 hPa	16.1 ^km	East (100°)	5.6 ^km/h	Clear
8:35 PM	5 ^°C	2 ^°C	81 ^%	1019.6 hPa	16.1 ^km	East (100°)	7.4 ^km/h	Clear
8:55 PM	5 ^°C	2 ^°C	81 ^%	1019.3 hPa	16.1 ^km	East (100°)	9.3 ^km/h	Clear
9:15 PM	5 ^°C	2 ^°C	81 ^%	1019 hPa	16.1 ^km	ESE (110°)	7.4 ^km/h	Clear
9:35 PM	4 ^°C	2 ^°C	87 ^%	1019 hPa	16.1 ^km	East (100°)	7.4 ^km/h	Clear
9:55 PM	4 ^°C	2 ^°C	87 ^%	1019 hPa	16.1 ^km	East (100°)	9.3 ^km/h	Clear
10:15 PM	4 ^°C	2 ^°C	87 ^%	1019 hPa	16.1 ^km	East (100°)	7.4 ^km/h	Clear
10:35 PM	4 ^°C	2 ^°C	87 ^%	1019 hPa	16.1 ^km	East (100°)	5.6 ^km/h	Clear
10:55 PM	3 ^°C	1 ^°C	87 ^%	1019 hPa	14.5 ^km	East (100°)	5.6 ^km/h	Clear
11:15 PM	3 ^°C	2 ^°C	93 ^%	1019 hPa	12.9 ^km	Calm		Clear
11:35 PM	3 ^°C	1 ^°C	87 ^%	1019 hPa	11.3 ^km	Calm		Clear
11:55 PM	2 ^°C	1 ^°C	93 ^%	1019 hPa	8 ^km	Calm		Clear

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