Portsmouth Rhode Island Weather Almanac
Saturday, May 3, 2025
Partly Cloudy, Morning Fog, Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2025
		May 3, 2025								Record					Record
Observed Daily Data		2025		2025		Norm		Depart		Highest					Lowest
Maximum Temperature		66		61		61		+5		86		in	2001		45		in	1898
Minimum Temperature		54		45		45		+9		59		in	2001		32		in	1964
Average Temperature		60		53		53		+7		73		in	2001		42		in	1911
Month Avg Max Temperature		64.7		60.0		60.3		+4.3		82.7		in	2001		49.0		in	1962
Month Avg Min Temperature		49.3		44.3		44.7		+4.7		54.0		in	2010		35.3		in	1964
Month Average Temperature		57.0		52.3		52.7		+4.3		68.3		in	2001		44.3		in	1941
High Heat Index		54		60						85		in	2001
Low Wind Chill				39											28		in	1964
Heating Degree Days		5		12		12		-7		23		in	1911		0		in	2001
Month Heating DD		24		38		37		-13		62		in	1941		1		in	2001
Season Heating DD		4839		4769		5210		-371		6298		in	1904		4335		in	2012
Cooling Degree Days		0		0		0		+0		8		in	2001		0		in	All
Month Cooling DD		0		0		0		+0		11		in	2001		0		in	Many
Year Cooling DD		0		0		0		+0		11		in	2001		0		in	Many
Maximum Dew Point		60		50		49		+11		66		in	2010		25		in	1986
Minimum Dew Point		52		39		37		+15		55		in	2010		9		in	1957
Average  Dew Point		56		45		43		+13		61		in	2010		18		in	1957
Month Avg Max Dew Point		55.7		51.3		48.7		+7.0		59.0		in	2010		26.3		in	1952
Month Avg Min Dew Point		42.3		40.0		36.7		+5.7		49.0		in	2004		15.7		in	1974
Month Average Dew Point		49.3		46.0		42.7		+6.7		53.2		in	2010		22.7		in	1957
Precipitation		.00		.00		.12		-.12		2.85		in	1900
One Hour Rain		.00		.00						.55		in	2019
Half Hour Rain		.00		.00						.30		in	2019
Hourly Rain Rate		.00		.00						1.95		in	2019
Month Precipitation		.19		.10		.37		-.18		2.85		in	1900		.00		in	2015
Year Precipitation		12.99		23.02		16.10		-3.11		31.21		in	1983		9.77		in	1927
Snow		0.0		0.0		0.0		+0.0		0.0		in			0.0		in	Many
Snow Depth		0		0		0				T		in	1941		0		in	Many
Month Snow		0.0		0.0		T				T		in	1995		0.0		in	Many
Season Snow		11.9		12.7		33.8		21.9		84.1		in	1996		5.0		in	1998
		May 3, 2025								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Humidity		98%		93%		87%		+11%		100%		in	2004		49%		in	1957
Minimum Humidity		75%		61%		51%		+24%		94%		in	2004		13%		in	1963
Average Humidity		87%		77%		69%		+17%		97%		in	2004		39%		in	1963
Maximum Barometer		29.96		30.26		30.05		-00.09		30.51		in	1993		29.64		in	2023
Minimum Barometer		29.85		30.07		29.81		+00.04		30.42		in	1993		29.13		in	1929
Average Barometer		29.91		30.17		29.93		-00.02		30.47		in	1993		29.53		in	1971
Average Wind		8.4		9.2		7.3		+1.1		14.9		in	2002		2.9		in	2009
Direction		S		NNE		S				WNW					SSW
High Wind Gust		35		29		24		+11		48		in	1981		11		in	2012
Direction		SSW		NNE		SSE				NE					ESE
Maximum Water Temp		53.8		51.3		51.5		+2.3		58.6		in	2007		46.8		in	2020
Minimum Water Temp		51.3		48.6		48.3		+3.0		52.2		in	2023		43.9		in	2020
Average Water Temp		52.6		50.0		49.9		+2.7		54.6		in	2007		45.4		in	2020
Sunrise/ AM Twilight		5:38:41 AM						5:07:41 AM
Sunset / PM Twilight		7:45:29 PM						8:16:21 PM
Length Of Day		14:07:03
Special Conditions		None
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