Portsmouth Rhode Island Weather Almanac
Sunday, December 5, 2021
Partly Cloudy to Mostly Cloudy PM, Breezy Late, Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2021
		December 5, 2021								Record					Record
Observed Daily Data		2021		2020		Norm		Depart		Highest					Lowest
Maximum Temperature		46		48		46		+0		67		in	2001		24		in	1901
Minimum Temperature		36		34		33		+3		51		in	2001		6		in	1926
Average Temperature		41		41		39		+2		59		in	2001		18		in	1926
Month Avg Max Temperature		48.4		52.2		46.4		+2.0		58.6		in	2001		32.2		in	1896
Month Avg Min Temperature		34.4		38.8		33.4		+1.0		43.8		in	2001		13.6		in	1989
Month Average Temperature		41.6		45.8		39.6		+2.0		51.6		in	2001		23.8		in	1976
High Heat Index
Low Wind Chill		31		22		22		+9							-1		in	1926
Heating Degree Days		24		24		26		-2		47		in	1926		6		in	2001
Month HDD		117		96		127		-10		206		in	1976		67		in	2001
Season HDD		911		889		1117		-206		1498		in	1904		878		in	2011
Cooling Degree Days		0		0		0		+0				in					in
Month CDD		0		0		0		+0		0		in					in
Year Cooling Degree Days		795		871		609		+186		871		in	2020		290		in	1902
Maximum Dew Point		35		44		38		-3		58		in	1994		3		in	1989
Minimum Dew Point		23		32		24		-1		46		in	2001		-4		in	1989
Average  Dew Point		29		38		31		-2		50		in	1951		-1		in	1989
Month Avg Max Dew Point		38.4		44.8		38.2		+0.2		51.4		in	1982		14.0		in	1976
Month Avg Min Dew Point		22.8		29.8		23.5		-0.7		39.0		in	1982		-3.8		in	1989
Month Average Dew Point		30.8		37.6		30.9		-0.1		45.2		in	1982		6.6		in	1989
Precipitation		.00		2.48		.15		-.15		2.81		in	1993
One Hour		.00		.28						.71		in	1993
Hourly Rate		.00		.58						.58		in	2020
Month Precipitation		T		2.53		.75		-.75		3.48		in	1893		.00		in	2011
Year Precipitation		45.58		39.41		42.18		+3.40		61.39		in	1983		24.18		in	1957
Snow		0.0		T		0.2		-0.2		8.3		in	2002				in
Snow Depth		0		0						4		in	1901				in
Month Snow		0.0		T		0.6		-0.6		9.6		in	2002		0.0		in	2021
Season Snow		T		0.6		1.2		-1.2		19.5		in	1898		0.0		in	2017
		December 5, 2021								Record					Record
Observed Daily Data		2021		2020		Norm		Depart		Highest					Lowest
Maximum Humidity		84%		97%		86%		-2%		100%		in	2013		53%		in	1980
Minimum Humidity		42%		83%		56%		-14%		96%		in	1972		23%		in	1989
Average Humidity		63%		90%		71%		-8%		98%		in	1972		42%		in	1989
Maximum Barometer		30.40		29.93		30.16		+00.24		30.77		in	1971		29.30		in	1968
Minimum Barometer		30.15		29.22		29.82		+00.33		30.52		in	2015		29.01		in	1968
Average Barometer		30.28		29.58		29.99		+00.29		30.58		in	2015		29.16		in	1968
Average Wind		5.3		13.6		8.1		-2.8		18.5		in	1961		2.4		in	1963
Direction		NNW		NW		NW				S					W
High Wind Gust		27		45		27		-0		50		in	1957		12		in	1998
Direction		SE		NNE		NW				NNW					N
Maximum Water Temp		50.7		51.1		48.6		+2.1		52.0		in	2001		43.9		in	2007
Minimum Water Temp		49.1		49.1		45.9		+3.2		50.9		in	2001		40.3		in	2007
Average Water Temp		49.9		50.1		47.2		+2.7		51.5		in	2001		42.1		in	2007
Sunrise/ AM Twilight		6:54:57 AM						6:25:34 AM
Sunset / PM Twilight		4:17:06 PM						4:46:29 PM
Length Of Day		9:22:09
Special Conditions		None
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