Portsmouth Rhode Island Weather Almanac
Friday, June 13, 2025
Mostly Cloudy early then Partly Cloudy, Much Cooler
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2025
		Jun 13								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Temperature		75		76		73		+2		93		in	1956		55		in	1982
Minimum Temperature		60		56		57		+3		68		in	1988		45		in	1976
Average Temperature		68		66		65		+3		78		in	2017		51		in	1982
Month Avg Max Temperature		74.2		74.8		71.2		+2.9		78.6		in	1925		60.8		in	1907
Month Avg Min Temperature		57.8		57.1		55.0		+2.8		60.1		in	2008		46.8		in	1907
Month Average Temperature		66.2		66.2		63.2		+3.0		68.9		in	1899		53.9		in	1907
High Heat Index		75		78						97		in	1956
Low Wind Chill															43		in	1976
Heating Degree Days		0		0		2		-2		14		in	1982		0		in	Many
Month Heating DD		18		4		36		-18		144		in	1907		2		in	1899
Season Heating DD		5020		4951		5495		-475		6601		in	1905		4409		in	1932
Cooling Degree Days		3		1		2		+1		13		in	2017		0		in	All
Month Cooling DD		34		20		17		+17		72		in	1984		0		in	Many
Year Cooling DD		34		20		17		+17		76		in	1991		0		in	Many
Maximum Dew Point		61		67		62		-1		72		in	2005		44		in	1979
Minimum Dew Point		44		53		52		-8		64		in	2005		30		in	1960
Average  Dew Point		53		60		57		-4		68		in	2005		41		in	1979
Month Avg Max Dew Point		64.2		63.5		60.3		+3.9		65.4		in	2021		49.4		in	1988
Month Avg Min Dew Point		52.8		53.0		50.3		+2.5		56.2		in	2005		41.1		in	1988
Month Average Dew Point		58.5		58.3		55.2		+3.3		60.3		in	2005		45.2		in	1988
Precipitation		.00		.00		.12		-.12		3.86		in	1998
One Hour Rain		.00		.00						.92		in	1998
Half Hour Rain		.00		.00						.60		in	2010
Hourly Rain Rate		.00		.00						6.70		in	2022
Month Precipitation		.61		.70		1.53		-.92		7.34		in	1982		T		in	1949
Year Precipitation		21.00		29.86		20.57		+.43		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 13								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Humidity		83%		96%		92%		-9%		100%		in	2018		63%		in	1956
Minimum Humidity		38%		66%		60%		-22%		97%		in	1998		27%		in	1990
Average Humidity		61%		81%		76%		-16%		99%		in	1998		53%		in	1979
Maximum Barometer		30.15		30.04		30.01		+00.14		30.41		in	1976		29.54		in	1955
Minimum Barometer		29.99		29.97		29.80		+00.19		30.18		in	2004		29.36		in	1985
Average Barometer		30.07		30.01		29.90		+00.17		30.24		in	2004		29.50		in	1955
Average Wind		5.6		7.0		6.0		-0.4		12.9		in	1975		2.6		in	1990
Direction		S		SSW		SW				S					WNW
High Wind Gust		20		27		21		-1		37		in	1965		13		in	2011
Direction		NNW		SSW		SSW				NW					SSE
Maximum Water Temp		65.8		68.2		63.5		+2.3		69.4		in	2008		57.2		in	1998
Minimum Water Temp		62.4		64.6		59.9		+2.5		66.0		in	2007		53.7		in	2006
Average Water Temp		64.1		66.4		61.7		+2.4		66.8		in	2007		56.3		in	2003
Sunrise/ AM Twilight		5:10:28 AM						4:36:53 AM
Sunset / PM Twilight		8:19:57 PM						8:54:14 PM
Length Of Day		15:09:29
Special Conditions		None
Comments		Midnight Temperature was 71°, Tying  record high (2017,1961)
Hour-by-Hour Weather For June 13, 2025
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