Portsmouth Rhode Island Weather Almanac
Wednesday, April 9, 2025
Clear, Windy, Continued Cold
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2025
		April 9, 2025								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Temperature		47		69		53		-6		78		in	1991		37		in	1997
Minimum Temperature		28		43		38		-10		50		in	1991		22		in	1977
Average Temperature		38		56		46		-8		64		in	1991		31		in	1917
Month Avg Max Temperature		51.9		50.7		51.7		+0.2		63.3		in	2010		40.4		in	2003
Month Avg Min Temperature		37.1		36.7		36.6		+0.6		44.8		in	2010		27.2		in	1982
Month Average Temperature		44.8		43.9		44.4		+0.3		54.2		in	2010		36.1		in	1982
High Heat Index										80		in	1991
Low Wind Chill		18		40		29		-11							9		in	1977
Heating Degree Days		27		9		19		+8		34		in	1917		1		in	1991
Month Heating DD		182		190		185		-3		260		in	1982		97		in	2010
Season Heating DD		4545		4422		4835		-290		5865		in	1918		4023		in	2012
Cooling Degree Days		0		0		0		+0		0		in	1900		0		in	All
Month Cooling DD
Year Cooling DD
Maximum Dew Point		30		41		41		-11		63		in	1991		14		in	1977
Minimum Dew Point		13		27		27		-14		45		in	1991		5		in	1977
Average  Dew Point		22		34		34		-12		54		in	1991		10		in	1977
Month Avg Max Dew Point		44.7		39.2		39.6		+5.1		52.1		in	2010		25.1		in	1965
Month Avg Min Dew Point		28.0		31.0		26.0		+2.0		40.1		in	2010		10.0		in	1982
Month Average Dew Point		36.3		35.1		32.8		+3.6		46.1		in	2010		19.3		in	1982
Precipitation		.00		.00		.14		-.14		2.33		in	1897
One Hour Rain		.00		.00						.27		in	1974
Half Hour Rain		.00		.00						.19		in	2020
Hourly Rain Rate		.00		.00						4.92		in	2020
Month Precipitation		1.46		2.36		1.33		+.13		4.20		in	1957		.00		in	1925
Year Precipitation		10.72		21.20		12.79		-2.07		21.98		in	1903		6.44		in	2012
Snow		0.0		0.0		0.0		+0.0		8.0		in	1997		0.0		in
Snow Depth		0		0		0.1		-0.1		5		in	1982		0		in
Month Snow		T		0.0		0.5		-0.5		8.0		in	1982		0.0		in	2024
Season Snow		11.9		12.7		33.5		-21.6		80.5		in	1996		5.0		in	1998
		April 9, 2025								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Humidity		77%		81%		84%		-7%		100%		in	2021		51%		in	1977
Minimum Humidity		28%		22%		45%		-17%		92%		in	1974		15%		in	1968
Average Humidity		53%		52%		64%		-12%		95%		in	1974		39%		in	1977
Maximum Barometer		30.32		30.11		30.04		+00.28		30.55		in	2023		29.61		in	2020
Minimum Barometer		29.93		30.00		29.76		+00.17		30.45		in	2023		28.87		in	1907
Average Barometer		30.13		30.06		29.90		+00.23		30.50		in	2023		29.33		in	2020
Average Wind		10.1		5.9		8.2		+1.9		18.9		in	2000		2.8		in	1952
Direction		WNW		SSE		WNW				SSE					SSE
High Wind Gust		27		21		26		+1		45		in	2000		13		in	1952
Direction		WNW		SSE		NNE				WSW					S
Maximum Water Temp		45.5		46.0		45.1		+0.4		55.9		in	2010		38.5		in	2003
Minimum Water Temp		43.2		43.5		42.5		+0.7		48.3		in	2010		38.0		in	2003
Average Water Temp		44.4		44.8		43.8		+0.5		52.1		in	2010		38.3		in	2003
Sunrise/ AM Twilight		7:06:18 AM						5:44:41 AM
Sunset / PM Twilight		7:19:26 PM						7:48:23 PM
Length Of Day		13:05:47
Special Conditions		None
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