Portsmouth Rhode Island Weather Almanac
Friday, March 15, 2024
Mostly Cloudy, Light Rain early, Partly Cloudy Day to Cloudy PM, Windy, Continued Warm
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		March 15, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		54		41		45		+9		62		in	1990		25		in	1932
Minimum Temperature		38		35		30		+8		47		in	1913		10		in	1993
Average Temperature		46		38		38		+8		54		in	1913		18		in	1993
Month Avg Max Temperature		50.7		44.7		43.1		+7.6		52.1		in	2020		33.0		in	1916
Month Avg Min Temperature		35.9		32.3		28.5		+7.3		37.1		in	1973		19.5		in	1950
Month Average Temperature		43.5		38.7		36.1		+7.3		44.6		in	1973		27.4		in	1916
High Heat Index										#N/A		in	#N/A
Low Wind Chill		33		22		22		+11							-6		in	1993
Heating Degree Days		19		27		27		-8		47		in	1993		11		in	1913
Month Heating DD		323		395		433		-110		564		in	1916		306		in	1973
Season Heating DD		3870		3705		4290		-420		5309		in	1905		3514		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		47		32		34		+13		52		in	2002		6		in	2021
Minimum Dew Point		35		26		20		+15		42		in	2016		-10		in	1993
Average  Dew Point		41		29		27		+14		46		in	2019		-1		in	1993
Month Avg Max Dew Point		42.9		30.5		33.0		+9.9		42.9		in	2024		18.9		in	1960
Month Avg Min Dew Point		30.8		17.3		17.9		+12.9		30.8		in	2024		3.7		in	1980
Month Average Dew Point		37.1		23.9		25.8		+11.3		37.1		in	2024		13.4		in	1960
Precipitation		.01		T		.14		-.13		3.00		in	1912
One Hour Rain		.01		.00						.39		in	1978
Half Hour Rain		.01		.00						.07		in	2010
Hourly Rain Rate		.00		.00						.34		in	2010
Month Precipitation		5.03		3.46		2.01		+3.02		5.49		in	1983		.04		in	1915
Year Precipitation		14.59		12.59		9.24		+5.35		19.20		in	1979		4.43		in	1980
Snow		0.0		T		0.2		-0.2		8.1		in	1999
Snow Depth		0		T		1		-1		12		in	1939
Month Snow		T		0.1		3.2		-3.2		18.9		in	1941		0.0		in	2011
Season Snow		12.7		9.1		30.8		-18.1		75.0		in	2005		4.7		in	1998
		March 15, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		98%		90%		86%		+12%		100%		in	2002		47%		in	1974
Minimum Humidity		74%		59%		51%		+23%		95%		in	2016		19%		in	2020
Average Humidity		86%		75%		69%		+17%		97%		in	2016		36%		in	2021
Maximum Barometer		30.01		29.85		30.06		-00.05		30.73		in	1968		29.41		in	1958
Minimum Barometer		29.66		29.31		29.73		-00.07		30.52		in	1968		29.18		in	1958
Average Barometer		29.84		29.58		29.90		-00.06		30.63		in	1968		29.30		in	1958
Average Wind		10.2		18.0		9.5		+0.7		18.0		in	2023		1.8		in	1995
Direction		N		NW		WNW				NW					ESE
High Wind Gust		30		40		29		+1		48		in	1980		9		in	1995
Direction		N		NW		WNW				W					SSW
Maximum Water Temp		44.1		41.5		40.6		+3.5		46.2		in	2012		36.4		in	2015
Minimum Water Temp		42.6		40.6		38.6		+4.0		45.0		in	2012		34.2		in	2003
Average Water Temp		43.4		41.1		39.6		+3.8		45.6		in	2012		35.4		in	2015
Sunrise/ AM Twilight		6:55:54 AM						6:27:26 AM
Sunset / PM Twilight		6:52:18 PM						7:20:15 PM
Length Of Day		11:56:24
Special Conditions		None
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