Portsmouth Rhode Island Weather Almanac
Thursday, March 21, 2024
Partly Cloudy to Clear PM, Very Windy and Much Colder
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		March 21, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		40		55		47		-7		71		in	1921		26		in	1912
Minimum Temperature		28		33		32		-4		50		in	2012		13		in	1986
Average Temperature		34		44		40		-6		60		in	2012		23		in	1986
Month Avg Max Temperature		50.6		45.9		44.0		+6.6		52.0		in	2020		31.6		in	1916
Month Avg Min Temperature		35.5		32.4		29.3		+6.2		36.7		in	1973		19.8		in	1916
Month Average Temperature		43.2		39.3		37.0		+6.3		44.2		in	2010		25.9		in	1916
High Heat Index										#N/A		in	#N/A
Low Wind Chill		16		30		23		-7							-1		in	1986
Heating Degree Days		31		21		25		+6		42		in	1986		5		in	2012
Month Heating DD		457		539		589		-132		821		in	1916		437		in	2010
Season Heating DD		4004		3849		4446		-442		5468		in	1905		3649		in	2016
Cooling Degree Days		0		0		0		+0				in			0		in	Many
Month Cooling DD		0		0		0		+0		3		in	2022		0		in	Many
Year Cooling DD		726		784		609		+117		871		in	2020		290		in	1902
Maximum Dew Point		24		34		36		-12		58		in	2012		7		in	1988
Minimum Dew Point		11		22		21		-10		50		in	2012		-11		in	1988
Average  Dew Point		18		28		29		-11		54		in	2012		-2		in	1988
Month Avg Max Dew Point		41.1		35.1		33.6		+7.5		41.7		in	2022		22.0		in	1960
Month Avg Min Dew Point		28.8		23.2		18.7		+10.0		29.6		in	1983		5.7		in	1950
Month Average Dew Point		35.2		29.2		26.5		+8.8		35.2		in	2024		15.8		in	1950
Precipitation		.00		.00		.15		-.15		1.78		in	1983
One Hour Rain		.00		.00						.79		in	1983
Half Hour Rain		.00		.00						.05		in	2019
Hourly Rain Rate		.00		.00						.30		in	2004
Month Precipitation		5.10		3.48		2.90		+2.20		8.46		in	1983		.08		in	1915
Year Precipitation		14.66		12.61		10.13		+4.53		19.23		in	1979		5.75		in	2012
Snow		0.0		0.0		0.2		-0.2		5.3		in	1912
Snow Depth		0		0		1		-1		15		in	1956
Month Snow		T		0.1		4.4		-4.4		27.8		in	1956		0.0		in	1947
Season Snow		12.7		9.1		32.0		-19.3		75.0		in	2005		4.8		in	1998
		March 21, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		69%		89%		87%		-18%		100%		in	2012		52%		in	1988
Minimum Humidity		36%		30%		51%		-15%		93%		in	2003		19%		in	1991
Average Humidity		53%		60%		69%		-17%		97%		in	2003		37%		in	1985
Maximum Barometer		30.22		30.36		30.06		+00.16		30.80		in	2007		29.38		in	1958
Minimum Barometer		29.75		30.24		29.75		+00.00		30.57		in	2007		29.03		in	1958
Average Barometer		29.99		30.30		29.90		+00.08		30.69		in	2007		29.21		in	1958
Average Wind		16.5		6.6		8.7		+7.8		18.8		in	2008		1.8		in	2005
Direction		WNW		SSW		WNW				WNW					WNW
High Wind Gust		39		32		27		+12		45		in	1980		11		in	1952
Direction		WNW		SW		SW				ESE					SSE
Maximum Water Temp		44.1		43.7		41.2		+2.9		49.8		in	2012		36.0		in	2015
Minimum Water Temp		42.6		41.7		39.3		+3.3		47.5		in	2012		34.7		in	2015
Average Water Temp		43.4		42.7		40.3		+3.1		48.7		in	2012		35.4		in	2015
Sunrise/ AM Twilight		6:45:45 AM						6:17:13 AM
Sunset / PM Twilight		6:58:58 PM						7:26:57 PM
Length Of Day		12:13:13
Special Conditions		None
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