ROCKVILLE, MARYLAND

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Elevation: 127 meters Latitude: 39 06N Longitude: 077 06W

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 JANUARY, 2015

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	-1.1 ^°C	3 ^°C (4:15 am)	-8 ^°C (10:35 pm)
Dewpoint	-8.5 ^°C	-3 ^°C (3:55 am)	-16 ^°C (9:35 pm)
Humidity	58.1 ^%	75 ^% (2:15 am)	44 ^% (1:15 pm)
Barometer	1018.6 ^hPa	1025.1 hPa (10:35 pm)	1013.5 hPa (12:55 am)
Wind Speed	22.2 ^km/h	42.6 ^km/h (4:15 pm)
Wind Gust		70.3 ^km/h (5:35 pm)

Weather Element	Average
Visibility	16.1 ^km
Wind Direction	W (266.9 °)

Weather Element	Total
Precipitation	---
Heating Degree Days	20.8 (Base 18.3)

Averaged from 72 records on 30 January, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 30 JANUARY, 2015

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Conditions
12:15 AM	1 ^°C	-4 ^°C	70 ^%	1014.2 hPa	16.1 ^km	Calm			Overcast
12:35 AM	1 ^°C	-4 ^°C	70 ^%	1013.9 hPa	16.1 ^km	Calm			Overcast
12:55 AM	1 ^°C	-5 ^°C	65 ^%	1013.5 hPa	16.1 ^km	Calm			Overcast
1:15 AM	1 ^°C	-4 ^°C	70 ^%	1013.9 hPa	16.1 ^km	Calm			Overcast
1:35 AM	1 ^°C	-4 ^°C	70 ^%	1013.9 hPa	16.1 ^km	Calm			Overcast
1:55 AM	1 ^°C	-4 ^°C	70 ^%	1013.9 hPa	16.1 ^km	Calm			Overcast
2:15 AM	0 ^°C	-4 ^°C	75 ^%	1013.9 hPa	16.1 ^km	Calm			Overcast
2:35 AM	1 ^°C	-4 ^°C	70 ^%	1013.9 hPa	16.1 ^km	Calm			Overcast
2:55 AM	1 ^°C	-4 ^°C	70 ^%	1013.9 hPa	16.1 ^km	West (270°)	5.6 ^km/h		Overcast
3:15 AM	1 ^°C	-4 ^°C	70 ^%	1013.9 hPa	16.1 ^km	Calm			Overcast
3:35 AM	1 ^°C	-4 ^°C	70 ^%	1013.9 hPa	16.1 ^km	WNW (290°)	11.1 ^km/h		Overcast
3:55 AM	2 ^°C	-3 ^°C	70 ^%	1013.9 hPa	16.1 ^km	West (280°)	20.4 ^km/h	27.8 ^km/h	Overcast
4:15 AM	3 ^°C	-3 ^°C	65 ^%	1013.5 hPa	16.1 ^km	WNW (300°)	14.8 ^km/h		Mostly Cloudy
4:35 AM	2 ^°C	-3 ^°C	70 ^%	1013.9 hPa	16.1 ^km	WNW (300°)	14.8 ^km/h		Partly Cloudy
4:55 AM	2 ^°C	-3 ^°C	70 ^%	1013.9 hPa	16.1 ^km	NW (310°)	22.2 ^km/h		Clear
5:15 AM	2 ^°C	-4 ^°C	65 ^%	1014.2 hPa	16.1 ^km	NW (310°)	14.8 ^km/h		Clear
5:35 AM	2 ^°C	-4 ^°C	65 ^%	1014.2 hPa	16.1 ^km	NW (310°)	16.7 ^km/h	27.8 ^km/h	Clear
5:55 AM	2 ^°C	-4 ^°C	65 ^%	1014.9 hPa	16.1 ^km	NW (320°)	13 ^km/h		Clear
6:15 AM	2 ^°C	-5 ^°C	60 ^%	1015.2 hPa	16.1 ^km	NW (310°)	25.9 ^km/h	37 ^km/h	Partly Cloudy
6:35 AM	1 ^°C	-6 ^°C	60 ^%	1015.6 hPa	16.1 ^km	WNW (300°)	18.5 ^km/h	29.6 ^km/h	Clear
6:55 AM	1 ^°C	-6 ^°C	60 ^%	1015.9 hPa	16.1 ^km	WNW (300°)	24.1 ^km/h	33.3 ^km/h	Clear
7:15 AM	1 ^°C	-6 ^°C	60 ^%	1015.9 hPa	16.1 ^km	WNW (300°)	27.8 ^km/h	33.3 ^km/h	Scattered Clouds
7:35 AM	1 ^°C	-6 ^°C	60 ^%	1016.3 hPa	16.1 ^km	WNW (300°)	18.5 ^km/h	27.8 ^km/h	Overcast
7:55 AM	1 ^°C	-6 ^°C	60 ^%	1016.3 hPa	16.1 ^km	NW (310°)	22.2 ^km/h	27.8 ^km/h	Overcast
8:15 AM	1 ^°C	-6 ^°C	60 ^%	1016.3 hPa	16.1 ^km	WNW (300°)	18.5 ^km/h		Mostly Cloudy
8:35 AM	1 ^°C	-6 ^°C	60 ^%	1016.6 hPa	16.1 ^km	NW (310°)	16.7 ^km/h		Mostly Cloudy
8:55 AM	1 ^°C	-5 ^°C	65 ^%	1016.9 hPa	16.1 ^km	NW (310°)	16.7 ^km/h	25.9 ^km/h	Mostly Cloudy
9:15 AM	1 ^°C	-4 ^°C	70 ^%	1016.9 hPa	16.1 ^km	WNW (300°)	27.8 ^km/h	37 ^km/h	Mostly Cloudy
9:35 AM	1 ^°C	-3 ^°C	75 ^%	1017.3 hPa	16.1 ^km	NW (310°)	18.5 ^km/h	37 ^km/h	Partly Cloudy
9:55 AM	2 ^°C	-3 ^°C	70 ^%	1017.3 hPa	16.1 ^km	WNW (300°)	27.8 ^km/h	37 ^km/h	Partly Cloudy
10:15 AM	2 ^°C	-4 ^°C	65 ^%	1017.6 hPa	16.1 ^km	NW (310°)	20.4 ^km/h	38.9 ^km/h	Mostly Cloudy
10:35 AM	2 ^°C	-4 ^°C	65 ^%	1017.6 hPa	16.1 ^km	NW (310°)	22.2 ^km/h	35.2 ^km/h	Partly Cloudy
10:55 AM	2 ^°C	-5 ^°C	60 ^%	1017.6 hPa	16.1 ^km	NW (310°)	25.9 ^km/h	38.9 ^km/h	Scattered Clouds
11:15 AM	2 ^°C	-6 ^°C	56 ^%	1017.6 hPa	16.1 ^km	NW (310°)	20.4 ^km/h	44.4 ^km/h	Mostly Cloudy
11:35 AM	2 ^°C	-6 ^°C	56 ^%	1017.9 hPa	16.1 ^km	WNW (300°)	33.3 ^km/h	55.5 ^km/h	Overcast
11:55 AM	1 ^°C	-6 ^°C	60 ^%	1017.6 hPa	16.1 ^km	NW (310°)	22.2 ^km/h	40.7 ^km/h	Scattered Clouds
12:15 PM	1 ^°C	-7 ^°C	56 ^%	1017.6 hPa	16.1 ^km	WNW (290°)	40.7 ^km/h	53.8 ^km/h	Mostly Cloudy
12:35 PM	2 ^°C	-8 ^°C	48 ^%	1017.6 hPa	16.1 ^km	NW (310°)	22.2 ^km/h	48.1 ^km/h	Mostly Cloudy
12:55 PM	2 ^°C	-8 ^°C	48 ^%	1017.6 hPa	16.1 ^km	NW (310°)	25.9 ^km/h	48.1 ^km/h	Mostly Cloudy
1:15 PM	2 ^°C	-9 ^°C	44 ^%	1017.6 hPa	16.1 ^km	NW (310°)	20.4 ^km/h	35.2 ^km/h	Overcast
1:35 PM	1 ^°C	-9 ^°C	48 ^%	1017.9 hPa	16.1 ^km	NW (320°)	25.9 ^km/h	40.7 ^km/h	Overcast
1:55 PM	1 ^°C	-10 ^°C	44 ^%	1018.3 hPa	16.1 ^km	NW (310°)	29.6 ^km/h	48.1 ^km/h	Overcast
2:15 PM	0 ^°C	-9 ^°C	51 ^%	1018.6 hPa	16.1 ^km	NW (320°)	24.1 ^km/h	48.1 ^km/h	Overcast
2:35 PM	0 ^°C	-10 ^°C	48 ^%	1018.6 hPa	16.1 ^km	WNW (300°)	37 ^km/h	53.8 ^km/h	Mostly Cloudy
2:55 PM	0 ^°C	-10 ^°C	48 ^%	1019 hPa	16.1 ^km	NW (320°)	22.2 ^km/h	44.4 ^km/h	Mostly Cloudy
3:15 PM	0 ^°C	-10 ^°C	48 ^%	1019.3 hPa	16.1 ^km	NW (320°)	24.1 ^km/h	46.3 ^km/h	Mostly Cloudy
3:35 PM	-1 ^°C	-11 ^°C	47 ^%	1020 hPa	16.1 ^km	WNW (300°)	33.3 ^km/h	40.7 ^km/h	Mostly Cloudy
3:55 PM	-1 ^°C	-11 ^°C	47 ^%	1020 hPa	16.1 ^km	WNW (300°)	38.9 ^km/h	50.1 ^km/h	Mostly Cloudy
4:15 PM	-2 ^°C	-11 ^°C	51 ^%	1020.3 hPa	16.1 ^km	WNW (300°)	42.6 ^km/h	62.9 ^km/h	Scattered Clouds
4:35 PM	-2 ^°C	-12 ^°C	47 ^%	1021 hPa	16.1 ^km	NW (310°)	31.5 ^km/h	48.1 ^km/h	Clear
4:55 PM	-2 ^°C	-12 ^°C	47 ^%	1021.3 hPa	16.1 ^km	NW (320°)	25.9 ^km/h	48.1 ^km/h	Clear
5:15 PM	-3 ^°C	-12 ^°C	51 ^%	1021.3 hPa	16.1 ^km	NW (310°)	37 ^km/h	53.8 ^km/h	Clear
5:35 PM	-3 ^°C	-13 ^°C	47 ^%	1021.7 hPa	16.1 ^km	WNW (300°)	42.6 ^km/h	70.3 ^km/h	Clear
5:55 PM	-4 ^°C	-13 ^°C	50 ^%	1022.4 hPa	16.1 ^km	NW (310°)	37 ^km/h	55.5 ^km/h	Clear
6:15 PM	-4 ^°C	-13 ^°C	50 ^%	1022.7 hPa	16.1 ^km	WNW (300°)	25.9 ^km/h	37 ^km/h	Clear
6:35 PM	-5 ^°C	-13 ^°C	54 ^%	1023.4 hPa	16.1 ^km	NW (310°)	25.9 ^km/h	48.1 ^km/h	Clear
6:55 PM	-5 ^°C	-14 ^°C	50 ^%	1023.7 hPa	16.1 ^km	NW (310°)	25.9 ^km/h	40.7 ^km/h	Partly Cloudy
7:15 PM	-6 ^°C	-14 ^°C	54 ^%	1023.7 hPa	16.1 ^km	WNW (300°)	24.1 ^km/h	40.7 ^km/h	Clear
7:35 PM	-6 ^°C	-14 ^°C	54 ^%	1024 hPa	16.1 ^km	WNW (300°)	31.5 ^km/h	46.3 ^km/h	Clear
7:55 PM	-6 ^°C	-14 ^°C	54 ^%	1024 hPa	16.1 ^km	WNW (300°)	33.3 ^km/h	46.3 ^km/h	Clear
8:15 PM	-6 ^°C	-14 ^°C	54 ^%	1024.4 hPa	16.1 ^km	NW (310°)	33.3 ^km/h	53.8 ^km/h	Partly Cloudy
8:35 PM	-6 ^°C	-14 ^°C	54 ^%	1024.4 hPa	16.1 ^km	NW (310°)	29.6 ^km/h	53.8 ^km/h	Clear
8:55 PM	-7 ^°C	-15 ^°C	54 ^%	1024.7 hPa	16.1 ^km	NW (310°)	33.3 ^km/h	44.4 ^km/h	Clear
9:15 PM	-7 ^°C	-15 ^°C	54 ^%	1024.7 hPa	16.1 ^km	WNW (300°)	31.5 ^km/h	46.3 ^km/h	Clear
9:35 PM	-7 ^°C	-16 ^°C	49 ^%	1024.7 hPa	16.1 ^km	WNW (300°)	24.1 ^km/h	50.1 ^km/h	Clear
9:55 PM	-7 ^°C	-15 ^°C	54 ^%	1024.7 hPa	16.1 ^km	WNW (300°)	24.1 ^km/h	42.6 ^km/h	Clear
10:15 PM	-7 ^°C	-16 ^°C	49 ^%	1024.7 hPa	16.1 ^km	WNW (300°)	25.9 ^km/h	40.7 ^km/h	Clear
10:35 PM	-8 ^°C	-16 ^°C	53 ^%	1025.1 hPa	16.1 ^km	NW (310°)	22.2 ^km/h	35.2 ^km/h	Clear
10:55 PM	-8 ^°C	-16 ^°C	53 ^%	1025.1 hPa	16.1 ^km	NW (310°)	20.4 ^km/h	37 ^km/h	Clear
11:15 PM	-8 ^°C	-16 ^°C	53 ^%	1024.7 hPa	16.1 ^km	WNW (300°)	35.2 ^km/h	42.6 ^km/h	Clear
11:35 PM	-8 ^°C	-16 ^°C	53 ^%	1025.1 hPa	16.1 ^km	WNW (300°)	24.1 ^km/h	44.4 ^km/h	Clear
11:55 PM	-8 ^°C	-16 ^°C	53 ^%	1025.1 hPa	16.1 ^km	WNW (300°)	27.8 ^km/h	44.4 ^km/h	Clear

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