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 - 19 SEPTEMBER, 2014

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	16.4 ^°C	22 ^°C (3:55 pm)	11 ^°C (3:55 am)
Dewpoint	12.2 ^°C	14 ^°C (2:55 pm)	9 ^°C (4:55 am)
Humidity	77.4 ^%	100 ^% (1:55 am)	57 ^% (3:55 pm)
Barometer	1025.4 ^hPa	1027.4 hPa (9:35 pm)	1021.3 hPa (12:35 am)
Wind Speed	6.3 ^km/h	16.7 ^km/h (2:55 pm)

Weather Element	Average
Visibility	14.3 ^km
Wind Direction	ENE (66.1 °)

Weather Element	Total
Precipitation	---
Heating Degree Days	1.8 (Base 18.3)
Growing Degree Days	6.5 (Base 10)

Averaged from 67 records on 19 September, 2014

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 19 SEPTEMBER, 2014

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Conditions
12:35 AM	14 ^°C	13 ^°C	94 ^%	1021.3 hPa	11.3 ^km	SE (140°)	9.3 ^km/h	Clear
12:55 AM	14 ^°C	13 ^°C	94 ^%	1021.3 hPa	8 ^km	Calm		Clear
1:15 AM	13 ^°C	12 ^°C	94 ^%	1021.7 hPa	4.8 ^km	Calm		Clear
1:35 AM	13 ^°C	12 ^°C	94 ^%	1021.7 hPa	2.9 ^km	Calm		Clear
1:55 AM	12 ^°C	12 ^°C	100 ^%	1021.7 hPa	4.8 ^km	Calm		Clear
2:15 AM	12 ^°C	12 ^°C	100 ^%	1021.7 hPa	8 ^km	Calm		Clear
2:35 AM	13 ^°C	12 ^°C	94 ^%	1022 hPa	4 ^km	Calm		Clear
2:55 AM	12 ^°C	12 ^°C	100 ^%	1022 hPa	4.8 ^km	Calm		Clear
3:15 AM	12 ^°C	11 ^°C	94 ^%	1022 hPa	6.4 ^km	Calm		Clear
3:35 AM	12 ^°C	11 ^°C	94 ^%	1022.4 hPa	4 ^km	Calm		Clear
3:55 AM	11 ^°C	11 ^°C	100 ^%	1022.7 hPa	3.2 ^km	Calm		Clear
4:15 AM	12 ^°C	11 ^°C	94 ^%	1023 hPa	16.1 ^km	Calm		Clear
4:35 AM	12 ^°C	11 ^°C	94 ^%	1022.7 hPa	16.1 ^km	NE (40°)	7.4 ^km/h	Clear
4:55 AM	13 ^°C	9 ^°C	77 ^%	1023.4 hPa	16.1 ^km	NE (40°)	7.4 ^km/h	Clear
5:15 AM	13 ^°C	9 ^°C	77 ^%	1023.4 hPa	16.1 ^km	NE (40°)	5.6 ^km/h	Partly Cloudy
5:35 AM	13 ^°C	9 ^°C	77 ^%	1023.7 hPa	16.1 ^km	Calm		Scattered Clouds
5:55 AM	12 ^°C	9 ^°C	82 ^%	1024 hPa	16.1 ^km	Calm		Mostly Cloudy
6:15 AM	12 ^°C	9 ^°C	82 ^%	1024 hPa	16.1 ^km	Calm		Partly Cloudy
6:35 AM	12 ^°C	9 ^°C	82 ^%	1024.4 hPa	16.1 ^km	NNE (20°)	5.6 ^km/h	Partly Cloudy
6:55 AM	12 ^°C	9 ^°C	82 ^%	1024.7 hPa	16.1 ^km	NNE (30°)	5.6 ^km/h	Clear
7:15 AM	12 ^°C	9 ^°C	82 ^%	1025.1 hPa	16.1 ^km	NE (40°)	5.6 ^km/h	Partly Cloudy
7:35 AM	12 ^°C	9 ^°C	82 ^%	1025.1 hPa	16.1 ^km	Calm		Partly Cloudy
7:55 AM	12 ^°C	9 ^°C	82 ^%	1025.4 hPa	16.1 ^km	NE (40°)	5.6 ^km/h	Mostly Cloudy
8:15 AM	13 ^°C	10 ^°C	82 ^%	1025.7 hPa	16.1 ^km	Calm		Mostly Cloudy
8:35 AM	13 ^°C	10 ^°C	82 ^%	1025.7 hPa	12.9 ^km	ENE (60°)	9.3 ^km/h	Mostly Cloudy
9:15 AM	14 ^°C	11 ^°C	82 ^%	1025.7 hPa	16.1 ^km	ENE (60°)	7.4 ^km/h	Scattered Clouds
9:35 AM	15 ^°C	11 ^°C	77 ^%	1026.1 hPa	16.1 ^km	ENE (60°)	5.6 ^km/h	Mostly Cloudy
9:55 AM	16 ^°C	11 ^°C	72 ^%	1026.1 hPa	16.1 ^km	ENE (70°)	9.3 ^km/h	Mostly Cloudy
10:15 AM	16 ^°C	11 ^°C	72 ^%	1026.1 hPa	16.1 ^km	ENE (60°)	9.3 ^km/h	Scattered Clouds
10:35 AM	17 ^°C	12 ^°C	72 ^%	1026.4 hPa	16.1 ^km	ESE (110°)	7.4 ^km/h	Partly Cloudy
10:55 AM	18 ^°C	12 ^°C	68 ^%	1026.4 hPa	16.1 ^km	East (90°)	5.6 ^km/h	Partly Cloudy
11:15 AM	18 ^°C	12 ^°C	68 ^%	1026.4 hPa	16.1 ^km	NE (50°)	9.3 ^km/h	Mostly Cloudy
11:35 AM	19 ^°C	13 ^°C	68 ^%	1026.4 hPa	16.1 ^km	ESE (120°)	14.8 ^km/h	Scattered Clouds
11:55 AM	19 ^°C	13 ^°C	68 ^%	1026.4 hPa	16.1 ^km	SE (130°)	11.1 ^km/h	Scattered Clouds
12:15 PM	20 ^°C	13 ^°C	64 ^%	1026.4 hPa	16.1 ^km	East (80°)	9.3 ^km/h	Scattered Clouds
12:35 PM	20 ^°C	13 ^°C	64 ^%	1026.4 hPa	16.1 ^km	NE (40°)	5.6 ^km/h	Scattered Clouds
12:55 PM	20 ^°C	13 ^°C	64 ^%	1026.4 hPa	16.1 ^km	ESE (120°)	5.6 ^km/h	Scattered Clouds
1:15 PM	21 ^°C	13 ^°C	60 ^%	1026.4 hPa	16.1 ^km	ESE (120°)	14.8 ^km/h	Mostly Cloudy
1:35 PM	21 ^°C	13 ^°C	60 ^%	1026.4 hPa	16.1 ^km	SE (130°)	11.1 ^km/h	Mostly Cloudy
1:55 PM	21 ^°C	13 ^°C	60 ^%	1026.4 hPa	16.1 ^km	East (100°)	9.3 ^km/h	Overcast
2:35 PM	21 ^°C	13 ^°C	60 ^%	1026.1 hPa	16.1 ^km	East (80°)	7.4 ^km/h	Mostly Cloudy
2:55 PM	21 ^°C	14 ^°C	64 ^%	1026.1 hPa	16.1 ^km	SE (130°)	16.7 ^km/h	Mostly Cloudy
3:35 PM	21 ^°C	13 ^°C	60 ^%	1026.1 hPa	16.1 ^km	ENE (70°)	7.4 ^km/h	Mostly Cloudy
3:55 PM	22 ^°C	13 ^°C	57 ^%	1025.7 hPa	16.1 ^km	ESE (110°)	7.4 ^km/h	Mostly Cloudy
4:15 PM	22 ^°C	14 ^°C	60 ^%	1026.1 hPa	16.1 ^km	ESE (110°)	13 ^km/h	Mostly Cloudy
4:35 PM	22 ^°C	13 ^°C	57 ^%	1025.7 hPa	16.1 ^km	East (90°)	11.1 ^km/h	Overcast
4:55 PM	21 ^°C	14 ^°C	64 ^%	1025.7 hPa	16.1 ^km	East (90°)	9.3 ^km/h	Overcast
5:15 PM	21 ^°C	13 ^°C	60 ^%	1025.7 hPa	16.1 ^km	East (90°)	9.3 ^km/h	Mostly Cloudy
5:35 PM	21 ^°C	13 ^°C	60 ^%	1025.7 hPa	16.1 ^km	ESE (110°)	9.3 ^km/h	Mostly Cloudy
5:55 PM	21 ^°C	13 ^°C	60 ^%	1025.7 hPa	16.1 ^km	East (100°)	5.6 ^km/h	Mostly Cloudy
6:15 PM	20 ^°C	14 ^°C	68 ^%	1026.1 hPa	16.1 ^km	East (90°)	5.6 ^km/h	Mostly Cloudy
6:35 PM	19 ^°C	14 ^°C	73 ^%	1026.1 hPa	16.1 ^km	East (100°)	13 ^km/h	Mostly Cloudy
6:55 PM	19 ^°C	14 ^°C	73 ^%	1026.1 hPa	16.1 ^km	East (90°)	9.3 ^km/h	Mostly Cloudy
7:15 PM	18 ^°C	14 ^°C	77 ^%	1026.4 hPa	16.1 ^km	East (100°)	5.6 ^km/h	Partly Cloudy
7:35 PM	18 ^°C	14 ^°C	77 ^%	1026.4 hPa	16.1 ^km	East (100°)	7.4 ^km/h	Mostly Cloudy
7:55 PM	18 ^°C	14 ^°C	77 ^%	1026.4 hPa	16.1 ^km	Calm		Partly Cloudy
8:15 PM	17 ^°C	14 ^°C	82 ^%	1026.8 hPa	16.1 ^km	SE (130°)	5.6 ^km/h	Clear
8:35 PM	17 ^°C	14 ^°C	82 ^%	1027.1 hPa	16.1 ^km	East (90°)	5.6 ^km/h	Scattered Clouds
8:55 PM	17 ^°C	14 ^°C	82 ^%	1027.1 hPa	16.1 ^km	East (100°)	7.4 ^km/h	Overcast
9:15 PM	17 ^°C	14 ^°C	82 ^%	1027.1 hPa	16.1 ^km	East (100°)	5.6 ^km/h	Overcast
9:35 PM	17 ^°C	14 ^°C	82 ^%	1027.4 hPa	16.1 ^km	East (100°)	7.4 ^km/h	Mostly Cloudy
10:15 PM	17 ^°C	14 ^°C	82 ^%	1027.4 hPa	16.1 ^km	ESE (110°)	7.4 ^km/h	Mostly Cloudy
10:35 PM	17 ^°C	14 ^°C	82 ^%	1027.4 hPa	16.1 ^km	ESE (110°)	11.1 ^km/h	Mostly Cloudy
10:55 PM	17 ^°C	14 ^°C	82 ^%	1027.4 hPa	16.1 ^km	ESE (110°)	11.1 ^km/h	Mostly Cloudy
11:15 PM	17 ^°C	14 ^°C	82 ^%	1027.4 hPa	16.1 ^km	ESE (110°)	7.4 ^km/h	Mostly Cloudy
11:35 PM	17 ^°C	14 ^°C	82 ^%	1027.4 hPa	16.1 ^km	ESE (110°)	11.1 ^km/h	Overcast
11:55 PM	17 ^°C	14 ^°C	82 ^%	1027.4 hPa	16.1 ^km	ESE (110°)	7.4 ^km/h	Overcast

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