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 - 21 SEPTEMBER, 2014

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	20.6 ^°C	28 ^°C (2:15 pm)	13 ^°C (5:15 am)
Dewpoint	15.2 ^°C	18 ^°C (12:55 pm)	11 ^°C (11:55 pm)
Humidity	74 ^%	100 ^% (12:35 am)	48 ^% (4:55 pm)
Barometer	1010.8 ^hPa	1019 hPa (12:35 am)	1005.4 hPa (4:55 pm)
Wind Speed	6.6 ^km/h	25.9 ^km/h (11:55 pm)
Wind Gust		35.2 ^km/h (11:55 pm)

Weather Element	Average
Visibility	14.5 ^km
Wind Direction	ESE (106.9 °)

Weather Element	Total
Precipitation	---
Cooling Degree Days	2.2 (Base 18.3)
Growing Degree Days	10.5 (Base 10)

Averaged from 67 records on 21 September, 2014

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 21 SEPTEMBER, 2014

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Conditions
12:35 AM	14 ^°C	14 ^°C	100 ^%	1019 hPa	16.1 ^km	Calm			Clear
1:15 AM	15 ^°C	14 ^°C	94 ^%	1018.3 hPa	16.1 ^km	Calm			Clear
1:35 AM	14 ^°C	13 ^°C	94 ^%	1017.9 hPa	12.9 ^km	Calm			Clear
1:55 AM	14 ^°C	13 ^°C	94 ^%	1017.3 hPa	12.9 ^km	Calm			Clear
2:15 AM	14 ^°C	13 ^°C	94 ^%	1016.9 hPa	12.9 ^km	Calm			Clear
2:35 AM	14 ^°C	13 ^°C	94 ^%	1016.3 hPa	12.9 ^km	Calm			Clear
2:55 AM	14 ^°C	13 ^°C	94 ^%	1015.6 hPa	11.3 ^km	Calm			Clear
3:15 AM	14 ^°C	13 ^°C	94 ^%	1015.6 hPa	16.1 ^km	Calm			Clear
3:35 AM	14 ^°C	13 ^°C	94 ^%	1015.2 hPa	16.1 ^km	Calm			Clear
3:55 AM	14 ^°C	13 ^°C	94 ^%	1014.9 hPa	16.1 ^km	ESE (120°)	5.6 ^km/h		Clear
4:15 AM	14 ^°C	13 ^°C	94 ^%	1014.9 hPa	16.1 ^km	Calm			Clear
4:35 AM	14 ^°C	13 ^°C	94 ^%	1014.6 hPa	11.3 ^km	Calm			Clear
4:55 AM	14 ^°C	13 ^°C	94 ^%	1014.9 hPa	4.8 ^km	Calm			Clear
5:15 AM	13 ^°C	12 ^°C	94 ^%	1014.6 hPa	8 ^km	Calm			Clear
5:35 AM	13 ^°C	12 ^°C	94 ^%	1013.9 hPa	14.5 ^km	Calm			Clear
5:55 AM	13 ^°C	12 ^°C	94 ^%	1013.9 hPa	6.4 ^km	Calm			Clear
6:15 AM	13 ^°C	12 ^°C	94 ^%	1013.9 hPa	4 ^km	Calm			Clear
6:35 AM	13 ^°C	12 ^°C	94 ^%	1014.2 hPa	11.3 ^km	Calm			Clear
6:55 AM	13 ^°C	12 ^°C	94 ^%	1014.2 hPa	8 ^km	Calm			Clear
7:15 AM	13 ^°C	12 ^°C	94 ^%	1014.2 hPa	9.7 ^km	Calm			Clear
7:35 AM	13 ^°C	13 ^°C	100 ^%	1013.9 hPa	8 ^km	Calm			Clear
7:55 AM	14 ^°C	14 ^°C	100 ^%	1013.5 hPa	8 ^km	Calm			Clear
8:15 AM	15 ^°C	14 ^°C	94 ^%	1013.5 hPa	12.9 ^km	ESE (110°)	5.6 ^km/h		Clear
8:35 AM	16 ^°C	14 ^°C	88 ^%	1013.5 hPa	14.5 ^km	ESE (110°)	5.6 ^km/h		Clear
8:55 AM	16 ^°C	15 ^°C	94 ^%	1013.2 hPa	16.1 ^km	Calm			Clear
9:15 AM	17 ^°C	16 ^°C	94 ^%	1013.2 hPa	16.1 ^km	Calm			Clear
9:35 AM	18 ^°C	17 ^°C	94 ^%	1013.2 hPa	16.1 ^km	Calm			Clear
9:55 AM	19 ^°C	17 ^°C	88 ^%	1012.9 hPa	16.1 ^km	Calm			Clear
10:15 AM	20 ^°C	17 ^°C	83 ^%	1012.9 hPa	16.1 ^km	Calm			Clear
10:35 AM	21 ^°C	17 ^°C	78 ^%	1012.9 hPa	16.1 ^km	Calm			Clear
11:15 AM	22 ^°C	16 ^°C	69 ^%	1012.2 hPa	16.1 ^km	South (180°)	5.6 ^km/h		Clear
11:35 AM	23 ^°C	16 ^°C	65 ^%	1011.9 hPa	16.1 ^km	SE (130°)	7.4 ^km/h		Clear
11:55 AM	24 ^°C	17 ^°C	65 ^%	1011.2 hPa	16.1 ^km	South (170°)	11.1 ^km/h		Clear
12:15 PM	25 ^°C	16 ^°C	57 ^%	1010.8 hPa	16.1 ^km	SE (130°)	13 ^km/h		Clear
12:35 PM	25 ^°C	17 ^°C	61 ^%	1010.5 hPa	16.1 ^km	ESE (110°)	7.4 ^km/h		Clear
12:55 PM	26 ^°C	18 ^°C	61 ^%	1009.8 hPa	16.1 ^km	SSE (150°)	11.1 ^km/h		Clear
1:15 PM	26 ^°C	17 ^°C	57 ^%	1009.1 hPa	16.1 ^km	SE (130°)	11.1 ^km/h		Clear
1:35 PM	26 ^°C	17 ^°C	57 ^%	1009.1 hPa	16.1 ^km	ESE (120°)	7.4 ^km/h		Clear
1:55 PM	27 ^°C	18 ^°C	58 ^%	1008.5 hPa	16.1 ^km	SE (140°)	9.3 ^km/h		Clear
2:15 PM	28 ^°C	18 ^°C	54 ^%	1008.1 hPa	16.1 ^km	South (180°)	7.4 ^km/h		Clear
2:35 PM	28 ^°C	17 ^°C	51 ^%	1007.5 hPa	16.1 ^km	Calm			Clear
2:55 PM	28 ^°C	17 ^°C	51 ^%	1007.1 hPa	16.1 ^km	SSW (200°)	9.3 ^km/h		Clear
3:15 PM	28 ^°C	18 ^°C	54 ^%	1006.8 hPa	16.1 ^km	SE (140°)	9.3 ^km/h		Clear
3:35 PM	28 ^°C	17 ^°C	51 ^%	1006.4 hPa	16.1 ^km	South (180°)	11.1 ^km/h		Clear
3:55 PM	28 ^°C	17 ^°C	51 ^%	1006.1 hPa	16.1 ^km	South (170°)	7.4 ^km/h		Clear
4:15 PM	28 ^°C	17 ^°C	51 ^%	1005.8 hPa	16.1 ^km	SSE (160°)	16.7 ^km/h		Clear
4:35 PM	28 ^°C	17 ^°C	51 ^%	1005.8 hPa	16.1 ^km	South (180°)	7.4 ^km/h		Clear
4:55 PM	28 ^°C	16 ^°C	48 ^%	1005.4 hPa	16.1 ^km	SSE (150°)	14.8 ^km/h		Clear
5:15 PM	28 ^°C	16 ^°C	48 ^%	1005.4 hPa	16.1 ^km	South (170°)	14.8 ^km/h		Clear
5:35 PM	28 ^°C	17 ^°C	51 ^%	1005.4 hPa	16.1 ^km	South (170°)	13 ^km/h		Clear
5:55 PM	27 ^°C	17 ^°C	54 ^%	1005.4 hPa	16.1 ^km	South (190°)	11.1 ^km/h		Clear
6:15 PM	27 ^°C	17 ^°C	54 ^%	1005.4 hPa	16.1 ^km	South (190°)	9.3 ^km/h		Partly Cloudy
6:55 PM	26 ^°C	17 ^°C	57 ^%	1005.8 hPa	16.1 ^km	South (190°)	13 ^km/h		Mostly Cloudy
7:15 PM	26 ^°C	17 ^°C	57 ^%	1005.8 hPa	16.1 ^km	Calm			Partly Cloudy
7:35 PM	24 ^°C	17 ^°C	65 ^%	1005.8 hPa	16.1 ^km	Calm			Scattered Clouds
7:55 PM	22 ^°C	18 ^°C	78 ^%	1006.1 hPa	16.1 ^km	South (180°)	5.6 ^km/h		Scattered Clouds
8:15 PM	24 ^°C	17 ^°C	65 ^%	1006.1 hPa	16.1 ^km	SW (220°)	7.4 ^km/h		Clear
8:55 PM	23 ^°C	18 ^°C	73 ^%	1006.8 hPa	16.1 ^km	West (270°)	14.8 ^km/h		Mostly Cloudy
9:15 PM	24 ^°C	16 ^°C	61 ^%	1007.1 hPa	16.1 ^km	West (280°)	18.5 ^km/h	31.5 ^km/h	Overcast
9:35 PM	24 ^°C	14 ^°C	53 ^%	1006.8 hPa	16.1 ^km	WNW (290°)	22.2 ^km/h	31.5 ^km/h	Overcast
9:55 PM	22 ^°C	16 ^°C	69 ^%	1007.1 hPa	16.1 ^km	WNW (290°)	13 ^km/h		Overcast
10:15 PM	23 ^°C	16 ^°C	65 ^%	1007.5 hPa	16.1 ^km	WNW (290°)	14.8 ^km/h		Overcast
10:35 PM	22 ^°C	15 ^°C	64 ^%	1007.8 hPa	16.1 ^km	WNW (290°)	16.7 ^km/h		Overcast
10:55 PM	22 ^°C	15 ^°C	64 ^%	1008.1 hPa	16.1 ^km	WNW (290°)	18.5 ^km/h		Mostly Cloudy
11:15 PM	22 ^°C	14 ^°C	60 ^%	1008.5 hPa	16.1 ^km	WNW (290°)	20.4 ^km/h	31.5 ^km/h	Mostly Cloudy
11:35 PM	22 ^°C	13 ^°C	57 ^%	1008.5 hPa	16.1 ^km	WNW (300°)	14.8 ^km/h	29.6 ^km/h	Scattered Clouds
11:55 PM	22 ^°C	11 ^°C	50 ^%	1009.1 hPa	16.1 ^km	WNW (300°)	25.9 ^km/h	35.2 ^km/h	Scattered Clouds

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