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 - 30 SEPTEMBER, 2014

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	19.1 ^°C	23 ^°C (1:35 pm)	16 ^°C (10:35 pm)
Dewpoint	16.2 ^°C	17 ^°C (12:15 am)	15 ^°C (5:15 pm)
Humidity	84.1 ^%	100 ^% (3:15 am)	61 ^% (5:35 pm)
Barometer	1014.2 ^hPa	1016.3 hPa (9:55 pm)	1012.5 hPa (3:55 pm)
Wind Speed	4.2 ^km/h	14.8 ^km/h (9:55 pm)

Weather Element	Average
Visibility	14.5 ^km
Wind Direction	ENE (80 °)

Weather Element	Total
Precipitation	11.94 ^mm
Cooling Degree Days	1.2 (Base 18.3)
Growing Degree Days	9.5 (Base 10)

Averaged from 70 records on 30 September, 2014

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 30 SEPTEMBER, 2014

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Precipitation	Events	Conditions
12:15 AM	18 ^°C	17 ^°C	94 ^%	1015.2 hPa	16.1 ^km	SSE (160°)	7.4 ^km/h			Overcast
12:35 AM	18 ^°C	17 ^°C	94 ^%	1014.9 hPa	16.1 ^km	SSE (150°)	9.3 ^km/h			Overcast
12:55 AM	18 ^°C	17 ^°C	94 ^%	1014.9 hPa	16.1 ^km	SSE (160°)	5.6 ^km/h			Overcast
1:15 AM	18 ^°C	17 ^°C	94 ^%	1014.9 hPa	16.1 ^km	SSE (160°)	7.4 ^km/h			Overcast
1:35 AM	18 ^°C	17 ^°C	94 ^%	1014.9 hPa	16.1 ^km	South (170°)	9.3 ^km/h			Overcast
1:55 AM	18 ^°C	17 ^°C	94 ^%	1014.9 hPa	14.5 ^km	South (180°)	5.6 ^km/h			Overcast
2:15 AM	18 ^°C	17 ^°C	94 ^%	1014.6 hPa	16.1 ^km	Calm				Overcast
2:35 AM	18 ^°C	17 ^°C	94 ^%	1014.2 hPa	16.1 ^km	Calm				Overcast
2:55 AM	18 ^°C	17 ^°C	94 ^%	1013.9 hPa	9.7 ^km	Calm				Overcast
3:15 AM	17 ^°C	17 ^°C	100 ^%	1014.2 hPa	4 ^km	Calm				Overcast
3:35 AM	17 ^°C	17 ^°C	100 ^%	1013.9 hPa	8 ^km	Calm				Overcast
3:55 AM	18 ^°C	17 ^°C	94 ^%	1013.9 hPa	11.3 ^km	Calm				Overcast
4:15 AM	18 ^°C	17 ^°C	94 ^%	1013.9 hPa	11.3 ^km	Calm				Overcast
4:35 AM	18 ^°C	17 ^°C	94 ^%	1013.9 hPa	6.4 ^km	Calm				Overcast
4:55 AM	18 ^°C	17 ^°C	94 ^%	1013.9 hPa	1.6 ^km	South (170°)	5.6 ^km/h			Overcast
5:15 AM	17 ^°C	17 ^°C	100 ^%	1013.9 hPa	1.3 ^km	West (260°)	7.4 ^km/h			Overcast
5:35 AM	17 ^°C	17 ^°C	100 ^%	1013.9 hPa	1.6 ^km	Calm				Overcast
5:55 AM	17 ^°C	17 ^°C	100 ^%	1014.2 hPa	11.3 ^km	Calm				Overcast
6:15 AM	17 ^°C	16 ^°C	94 ^%	1014.2 hPa	16.1 ^km	Calm				Overcast
6:35 AM	17 ^°C	16 ^°C	94 ^%	1014.6 hPa	16.1 ^km	Calm				Overcast
6:55 AM	17 ^°C	16 ^°C	94 ^%	1014.6 hPa	16.1 ^km	Calm				Overcast
7:15 AM	17 ^°C	16 ^°C	94 ^%	1014.9 hPa	16.1 ^km	Calm				Overcast
7:35 AM	17 ^°C	16 ^°C	94 ^%	1014.9 hPa	16.1 ^km	Calm				Overcast
7:55 AM	17 ^°C	16 ^°C	94 ^%	1014.9 hPa	16.1 ^km	SE (130°)	9.3 ^km/h			Overcast
8:15 AM	18 ^°C	17 ^°C	94 ^%	1015.2 hPa	16.1 ^km	Calm				Overcast
8:35 AM	18 ^°C	16 ^°C	88 ^%	1015.2 hPa	16.1 ^km	Calm				Overcast
8:55 AM	18 ^°C	16 ^°C	88 ^%	1015.2 hPa	16.1 ^km	SE (140°)	9.3 ^km/h			Overcast
9:15 AM	18 ^°C	16 ^°C	88 ^%	1015.2 hPa	16.1 ^km	SE (130°)	9.3 ^km/h			Overcast
9:35 AM	18 ^°C	16 ^°C	88 ^%	1015.2 hPa	16.1 ^km	SSE (150°)	5.6 ^km/h			Overcast
9:55 AM	18 ^°C	16 ^°C	88 ^%	1015.2 hPa	16.1 ^km	SE (140°)	7.4 ^km/h			Overcast
10:15 AM	19 ^°C	16 ^°C	83 ^%	1015.2 hPa	16.1 ^km	Calm				Overcast
10:35 AM	19 ^°C	16 ^°C	83 ^%	1015.2 hPa	16.1 ^km	Calm				Overcast
10:55 AM	19 ^°C	16 ^°C	83 ^%	1015.2 hPa	16.1 ^km	SE (140°)	7.4 ^km/h			Overcast
11:15 AM	19 ^°C	16 ^°C	83 ^%	1014.9 hPa	16.1 ^km	Calm				Overcast
11:35 AM	20 ^°C	16 ^°C	78 ^%	1014.9 hPa	16.1 ^km	Calm				Overcast
11:55 AM	20 ^°C	16 ^°C	78 ^%	1014.9 hPa	16.1 ^km	Calm				Overcast
12:15 PM	22 ^°C	17 ^°C	73 ^%	1014.9 hPa	16.1 ^km	South (190°)	7.4 ^km/h			Overcast
12:35 PM	21 ^°C	16 ^°C	73 ^%	1014.9 hPa	16.1 ^km	Calm				Overcast
12:55 PM	22 ^°C	17 ^°C	73 ^%	1014.6 hPa	16.1 ^km	SSE (150°)	11.1 ^km/h			Overcast
1:15 PM	22 ^°C	17 ^°C	73 ^%	1014.6 hPa	16.1 ^km	SE (130°)	5.6 ^km/h			Overcast
1:35 PM	23 ^°C	16 ^°C	65 ^%	1014.2 hPa	16.1 ^km	Calm				Mostly Cloudy
1:55 PM	22 ^°C	17 ^°C	73 ^%	1013.9 hPa	14.5 ^km	SE (130°)	5.6 ^km/h			Mostly Cloudy
2:15 PM	23 ^°C	17 ^°C	69 ^%	1013.5 hPa	16.1 ^km	SSW (200°)	7.4 ^km/h			Mostly Cloudy
2:35 PM	22 ^°C	16 ^°C	69 ^%	1013.5 hPa	16.1 ^km	SSE (150°)	7.4 ^km/h			Scattered Clouds
2:55 PM	23 ^°C	17 ^°C	69 ^%	1013.2 hPa	16.1 ^km	ESE (110°)	5.6 ^km/h			Mostly Cloudy
3:15 PM	23 ^°C	16 ^°C	65 ^%	1013.2 hPa	16.1 ^km	SSE (150°)	7.4 ^km/h			Mostly Cloudy
3:55 PM	23 ^°C	16 ^°C	65 ^%	1012.5 hPa	16.1 ^km	SE (130°)	11.1 ^km/h			Partly Cloudy
4:15 PM	23 ^°C	17 ^°C	69 ^%	1012.9 hPa	16.1 ^km	ESE (110°)	11.1 ^km/h			Partly Cloudy
4:35 PM	23 ^°C	16 ^°C	65 ^%	1012.9 hPa	16.1 ^km	ESE (110°)	11.1 ^km/h			Scattered Clouds
4:55 PM	23 ^°C	16 ^°C	65 ^%	1012.9 hPa	16.1 ^km	SSE (160°)	9.3 ^km/h			Partly Cloudy
5:15 PM	22 ^°C	15 ^°C	64 ^%	1012.9 hPa	16.1 ^km	SSE (150°)	11.1 ^km/h			Clear
5:35 PM	23 ^°C	15 ^°C	61 ^%	1012.5 hPa	16.1 ^km	SE (130°)	13 ^km/h			Clear
5:55 PM	22 ^°C	15 ^°C	64 ^%	1012.5 hPa	16.1 ^km	SE (140°)	9.3 ^km/h			Clear
6:15 PM	22 ^°C	15 ^°C	64 ^%	1012.9 hPa	16.1 ^km	SSE (150°)	5.6 ^km/h			Clear
6:35 PM	22 ^°C	16 ^°C	69 ^%	1013.2 hPa	16.1 ^km	Calm				Mostly Cloudy
6:55 PM	20 ^°C	16 ^°C	78 ^%	1013.2 hPa	16.1 ^km	ESE (110°)	5.6 ^km/h			Mostly Cloudy
7:15 PM	20 ^°C	15 ^°C	73 ^%	1013.2 hPa	16.1 ^km	SE (130°)	9.3 ^km/h			Clear
7:35 PM	19 ^°C	15 ^°C	78 ^%	1013.5 hPa	16.1 ^km	Calm				Clear
7:55 PM	19 ^°C	15 ^°C	78 ^%	1013.9 hPa	16.1 ^km	Calm				Clear
8:15 PM	18 ^°C	15 ^°C	83 ^%	1013.9 hPa	16.1 ^km	SSE (150°)	5.6 ^km/h			Clear
8:35 PM	18 ^°C	15 ^°C	83 ^%	1014.2 hPa	16.1 ^km	Calm				Partly Cloudy
8:55 PM	18 ^°C	16 ^°C	88 ^%	1014.6 hPa	16.1 ^km	Calm				Mostly Cloudy
9:15 PM	18 ^°C	16 ^°C	88 ^%	1015.2 hPa	16.1 ^km	Calm				Mostly Cloudy
9:35 PM	18 ^°C	16 ^°C	88 ^%	1015.6 hPa	16.1 ^km	WNW (300°)	11.1 ^km/h		Thunderstorm	Overcast
9:55 PM	18 ^°C	16 ^°C	88 ^%	1016.3 hPa	12.9 ^km	West (260°)	14.8 ^km/h	0.25 mm	Thunderstorm	Overcast
10:15 PM	17 ^°C	15 ^°C	88 ^%	1015.9 hPa	8 ^km	Calm		3.05 mm	Thunderstorm	Mostly Cloudy
10:35 PM	16 ^°C	15 ^°C	94 ^%	1015.6 hPa	14.5 ^km	Calm		4.32 mm		Overcast
10:55 PM	16 ^°C	15 ^°C	94 ^%	1015.2 hPa	16.1 ^km	Calm		4.32 mm		Overcast
11:15 PM	16 ^°C	15 ^°C	94 ^%	1015.2 hPa	16.1 ^km	ESE (120°)	5.6 ^km/h			Mostly Cloudy
11:55 PM	16 ^°C	15 ^°C	94 ^%	1015.6 hPa	16.1 ^km	Calm				Partly Cloudy

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