Portsmouth Rhode Island Weather Almanac
Sunday, June 8, 2025
Partly Cloudy and Fog early then Mostly Cloudy & Haze PM, Warm
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2025
		Jun 8								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Temperature		74		75		71		+3		88		in	1984		54		in	1947
Minimum Temperature		60		58		55		+5		72		in	1999		42		in	1932
Average Temperature		67		67		63		+4		80		in	1999		50		in	1955
Month Avg Max Temperature		74.6		75.8		70.5		+4.1		83.1		in	1925		59.3		in	1907
Month Avg Min Temperature		56.6		57.5		54.1		+2.5		60.5		in	1925		46.4		in	1945
Month Average Temperature		65.8		67.1		62.5		+3.3		72.0		in	1925		53.1		in	1907
High Heat Index		76		76						96		in	2008
Low Wind Chill															40		in	1955
Heating Degree Days		0		0		3		-3		15		in	1955		0		in	Many
Month Heating DD		14		1		27		-13		95		in	1907		0		in	1899
Season Heating DD		5016		4948		5486		-470		6585		in	1905		4395		in	1932
Cooling Degree Days		2		2		1		+1		15		in	1999		0		in	All
Month Cooling DD		20		18		8		+12		61		in	1925		0		in	Many
Year Cooling DD		20		18		8		+12		61		in	1925		0		in	Many
Maximum Dew Point		66		62		61		+5		74		in	2008		42		in	1988
Minimum Dew Point		57		52		51		+6		66		in	2008		32		in	1988
Average  Dew Point		62		57		56		+6		70		in	2008		37		in	1988
Month Avg Max Dew Point		63.4		63.9		59.6		+3.8		66.3		in	2021		48.5		in	1988
Month Avg Min Dew Point		52.9		53.5		49.5		+3.4		56.3		in	2021		39.4		in	1988
Month Average Dew Point		58.1		58.7		54.5		+3.6		61.3		in	2021		43.9		in	1988
Precipitation		.00		.00		.12		-.12		1.57		in	1986
One Hour Rain		.00		.00						.47		in	1986
Half Hour Rain		.00		.00						.25		in	2013
Hourly Rain Rate		.00		.00						4.17		in	2022
Month Precipitation		.28		.54		.93		-.65		6.84		in	1982		.00		in	2005
Year Precipitation		20.67		29.70		19.97		+.70		36.73		in	1983		12.64		in	1957
Snow		0.0		0.0		#N/A		#N/A		0.0		in	1900		0.0		in	Many
Snow Depth		0		0		0				0		in	2020		0		in	Many
Month Snow		0.0		0.0		T				#N/A		in	#N/A		0.0		in	Many
Season Snow		11.9		12.7		33.8		21.9		84.1		in	1996		5.0		in	1998
		Jun 8								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Humidity		99%		86%		91%		+8%		100%		in	2003		59%		in	1952
Minimum Humidity		72%		55%		55%		+17%		87%		in	1989		24%		in	1988
Average Humidity		86%		71%		73%		+13%		94%		in	1989		45%		in	1988
Maximum Barometer		29.96		29.76		29.99		-00.03		30.41		in	1934		29.64		in	2016
Minimum Barometer		29.76		29.64		29.78		-00.02		30.24		in	2002		29.31		in	1980
Average Barometer		29.86		29.70		29.89		-00.03		30.30		in	2002		29.51		in	1980
Average Wind		5.4		7.5		5.8		-0.4		14.2		in	1982		1.4		in	1989
Direction		NNE		WNW		SW				NNE					SSE
High Wind Gust		20		25		21		-1		37		in	1982		12		in	1989
Direction		ESE		SSW		SW				NNE					WSW
Maximum Water Temp		63.5		64.0		62.3		+1.2		68.7		in	2007		56.1		in	2020
Minimum Water Temp		59.0		61.0		58.7		+0.3		64.9		in	1999		52.9		in	2020
Average Water Temp		61.3		62.5		60.5		+0.7		66.8		in	1999		54.5		in	2020
Sunrise/ AM Twilight		5:11:09 AM						4:37:31 AM
Sunset / PM Twilight		8:17:21 PM						8:51:32 PM
Length Of Day		15:06:12
Special Conditions		Dense Fog, Haze
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