Portsmouth Rhode Island Weather Almanac
Wednesday, June 11, 2025
Partly Cloudy/Dense Fog early then Clear, Light Winds, Much Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2025
		Jun 11								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Temperature		76		73		72		+4		88		in	1997		54		in	1910
Minimum Temperature		58		55		56		+2		69		in	2008		43		in	1980
Average Temperature		67		64		64		+3		77		in	2008		52		in	1910
Month Avg Max Temperature		73.1		74.5		70.9		+2.2		79.9		in	1925		59.9		in	1907
Month Avg Min Temperature		57.3		57.3		54.6		+2.6		60.5		in	2008		47.0		in	1907
Month Average Temperature		65.4		66.3		62.9		+2.5		69.9		in	1925		53.5		in	1907
High Heat Index		77		74						92		in	1894
Low Wind Chill															41		in	1980
Heating Degree Days		0		1		2		-2		13		in	1910		0		in	Many
Month Heating DD		18		4		33		-15		126		in	1907		2		in	1936
Season Heating DD		5020		4951		5492		-472		6596		in	1905		4403		in	1932
Cooling Degree Days		2		0		2		+0		12		in	2008		0		in	All
Month Cooling DD		22		18		13		+9		64		in	1925		0		in	Many
Year Cooling DD		22		18		13		+9		64		in	1925		0		in	Many
Maximum Dew Point		67		61		61		+6		71		in	1996		38		in	1972
Minimum Dew Point		57		51		52		+5		62		in	1996		32		in	1971
Average  Dew Point		62		56		56		+6		67		in	1996		36		in	1972
Month Avg Max Dew Point		63.8		63.2		60.0		+3.8		66.1		in	2021		48.2		in	1988
Month Avg Min Dew Point		54.1		53.0		50.0		+4.1		56.1		in	2008		39.3		in	1988
Month Average Dew Point		59.0		58.1		54.9		+4.0		60.8		in	2008		43.7		in	1988
Precipitation		.00		.00		.12		-.12		1.19		in	2013
One Hour Rain		.00		.00						.74		in	2001
Half Hour Rain		.00		.00						.39		in	2020
Hourly Rain Rate		.00		.00						3.29		in	2019
Month Precipitation		.61		.70		1.29		-.68		6.84		in	1982		T		in	1967
Year Precipitation		21.00		29.86		20.33		+.67		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 11								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Humidity		98%		90%		88%		+10%		100%		in	2003		55%		in	1985
Minimum Humidity		51%		62%		54%		-3%		91%		in	1968		23%		in	1971
Average Humidity		75%		76%		71%		+3%		94%		in	1968		41%		in	1985
Maximum Barometer		30.04		29.98		30.02		+00.02		30.40		in	1999		29.51		in	1952
Minimum Barometer		29.94		29.78		29.82		+00.12		30.29		in	1999		29.43		in	1952
Average Barometer		29.99		29.88		29.92		+00.07		30.35		in	1999		29.47		in	1952
Average Wind		5.0		5.0		6.4		-1.4		12.2		in	1977		1.3		in	1963
Direction		SSW		S		SSW				NNW					NE
High Wind Gust		25		15		22		+3		34		in	2020		12		in	1968
Direction		SSW		S		SSW				WSW					NNE
Maximum Water Temp		65.7		66.0		63.0		+2.7		67.5		in	2007		56.7		in	2020
Minimum Water Temp		62.1		63.0		59.6		+2.5		64.8		in	2007		54.8		in	2003
Average Water Temp		63.9		64.5		61.3		+2.6		66.1		in	2007		55.9		in	2020
Sunrise/ AM Twilight		5:10:38 AM						4:37:02 AM
Sunset / PM Twilight		8:19:00 PM						8:53:15 PM
Length Of Day		15:08:22
Special Conditions		Dense Fog
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