Portsmouth Rhode Island Weather Almanac
Thursday, April 10, 2025
Clear early, Partly Cloudy Day to Mostly Cloudy PM, Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2025
		April 10, 2025								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Temperature		50		55		53		-3		76		in	1922		37		in	1996
Minimum Temperature		30		41		38		-8		47		in	1980		26		in	1997
Average Temperature		40		48		46		-6		59		in	1922		34		in	1996
Month Avg Max Temperature		51.7		51.1		51.8		-0.1		62.8		in	2010		41.2		in	2003
Month Avg Min Temperature		36.4		37.1		36.7		-0.3		44.2		in	2010		27.7		in	1982
Month Average Temperature		44.3		44.3		44.6		-0.3		53.7		in	2010		36.6		in	2003
High Heat Index												in
Low Wind Chill		30		36		29		+1							14		in	1997
Heating Degree Days		25		17		19		+6		31		in	1996		6		in	1922
Month Heating DD		207		207		204		+3		284		in	2003		113		in	2010
Season Heating DD		4570		4439		4854		-284		5891		in	1918		4038		in	2012
Cooling Degree Days		0		0		0		+0		0		in	1900		0		in	All
Month Cooling DD
Year Cooling DD
Maximum Dew Point		38		48		41		-3		58		in	1993		12		in	1997
Minimum Dew Point		25		36		28		-3		46		in	1980		3		in	1997
Average  Dew Point		32		42		34		-2		51		in	1993		8		in	1997
Month Avg Max Dew Point		44.0		40.1		39.7		+4.3		50.9		in	2010		25.9		in	1965
Month Avg Min Dew Point		27.7		31.5		26.2		+1.5		38.9		in	2010		10.3		in	1982
Month Average Dew Point		35.9		35.8		32.9		+3.0		44.9		in	2010		19.1		in	1982
Precipitation		T		.00		.14		-.14		2.93		in	1983
One Hour Rain		T		.00						.60		in	1980
Half Hour Rain		.00		.00						.12		in	2013
Hourly Rain Rate		.00		.00						2.08		in	2013
Month Precipitation		1.46		2.36		1.47		-.01		5.57		in	1983		.03		in	1963
Year Precipitation		10.72		21.20		12.93		-2.21		24.84		in	1983		6.44		in	2012
Snow		0.0		0.0		0.0		+0.0		3.6		in	1997		0.0		in
Snow Depth		0		0		0.2		-0.2		8		in	1917		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 10, 2025								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Humidity		87%		94%		82%		+5%		100%		in	2015		42%		in	1997
Minimum Humidity		48%		72%		44%		+4%		96%		in	2015		13%		in	1997
Average Humidity		68%		83%		63%		+4%		98%		in	2015		28%		in	1997
Maximum Barometer		30.41		30.15		30.06		+00.35		30.73		in	1954		29.41		in	1963
Minimum Barometer		30.31		30.08		29.76		+00.55		30.31		in	2025		29.02		in	1986
Average Barometer		30.36		30.12		29.91		+00.45		30.37		in	2023		29.32		in	1986
Average Wind		6.0		8.3		8.5		-2.5		16.7		in	1988		2.0		in	1966
Direction		S		SE		W				NNW					WNW
High Wind Gust		18		23		28		-10		44		in	1969		11		in	2018
Direction		SSE		SE		WNW				SW					SSE
Maximum Water Temp		46.2		45.9		45.5		+0.7		52.3		in	2010		40.2		in	2020
Minimum Water Temp		44.6		43.9		42.8		+1.8		49.1		in	2010		37.9		in	2003
Average Water Temp		45.4		44.9		44.1		+1.3		50.7		in	2010		39.6		in	2003
Sunrise/ AM Twilight		7:04:39 AM						5:43:00 AM
Sunset / PM Twilight		7:20:31 PM						7:49:32 PM
Length Of Day		13:08:29
Special Conditions		None
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