Portsmouth Rhode Island Weather Almanac
Wednesday, April 16, 2025
Cloudy to Mostly Cloudy PM, Windy and Colder
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2025
		April 16, 2025								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Temperature		52		65		55		-3		74		in	1941		40		in	1895
Minimum Temperature		40		46		39		+1		53		in	2023		27		in	1943
Average Temperature		46		56		48		-2		62		in	1896		36		in	1943
Month Avg Max Temperature		51.8		54.4		52.8		-1.0		61.9		in	1945		45.2		in	1907
Month Avg Min Temperature		37.3		40.3		37.4		-0.2		43.2		in	2010		29.7		in	1982
Month Average Temperature		44.8		47.6		45.4		-0.7		52.7		in	2010		38.8		in	1907
High Heat Index												in
Low Wind Chill		34		44		33		+1							17		in	1981
Heating Degree Days		19		9		17		+2		29		in	1943		3		in	1896
Month Heating DD		324		278		313		+11		419		in	1907		197		in	2010
Season Heating DD		4687		4510		4963		-276		6028		in	1918		4111		in	2012
Cooling Degree Days		0		0		0		+0		0		in			0		in	All
Month Cooling DD
Year Cooling DD
Maximum Dew Point		52		48		43		+9		61		in	2000		26		in	1977
Minimum Dew Point		40		36		30		+10		51		in	2023		11		in	1992
Average  Dew Point		46		42		36		+10		56		in	2023		21		in	1992
Month Avg Max Dew Point		44.5		44.0		40.6		+3.9		47.5		in	2023		30.3		in	1975
Month Avg Min Dew Point		30.9		34.7		27.2		+3.7		35.6		in	2010		14.6		in	1992
Month Average Dew Point		37.7		39.3		33.9		+3.8		41.4		in	2010		22.8		in	1992
Precipitation		.00		.00		.14		-.14		2.29		in	1961
One Hour Rain		.00		.00						.57		in	1961
Half Hour Rain		.00		.00						.17		in	2014
Hourly Rain Rate		.00		.00						2.64		in	2018
Month Precipitation		2.44		3.34		2.31		+.13		6.74		in	1964		.03		in	1963
Year Precipitation		11.70		22.18		13.77		-2.07		25.62		in	1983		6.69		in	2012
Snow		0.0		0.0		0.0		+0.0		2.0		in	1997		0.0		in
Snow Depth		0		0		0.0		+0.0		T		in	1950		0		in
Month Snow		T		0.0		0.5		-0.5		9.6		in	1996		0.0		in	2024
Season Snow		11.9		12.7		33.5		-21.6		84.1		in	1996		5.0		in	1998
		April 16, 2025								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Humidity		80%		83%		89%		-9%		100%		in	2018		49%		in	1977
Minimum Humidity		52%		36%		51%		+1%		96%		in	1984		20%		in	1959
Average Humidity		66%		60%		70%		-4%		98%		in	1984		37%		in	1977
Maximum Barometer		29.87		30.16		30.07		-00.20		30.61		in	2005		29.30		in	2007
Minimum Barometer		29.49		29.90		29.77		-00.28		30.39		in	2016		28.85		in	2007
Average Barometer		29.68		30.03		29.92		-00.24		30.50		in	2005		29.08		in	2007
Average Wind		11.7		4.9		8.5		+3.2		20.0		in	1956		3.6		in	2008
Direction		W		NNW		NNE				S					WSW
High Wind Gust		36		22		27		+9		58		in	1956		13		in	2002
Direction		WNW		NNW		NE				S					SSW
Maximum Water Temp		46.4		51.8		47.0		-0.6		53.9		in	2012		41.4		in	2018
Minimum Water Temp		45.1		47.8		44.4		+0.7		49.5		in	2012		40.0		in	2003
Average Water Temp		45.8		49.8		45.9		-0.1		51.7		in	2012		40.8		in	2018
Sunrise/ AM Twilight		6:54:38 AM						5:33:08 AM
Sunset / PM Twilight		7:27:03 PM						7:56:27 PM
Length Of Day		13:24:31
Special Conditions		None
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