Portsmouth Rhode Island Weather Almanac
Friday, May 31, 2024
Partly Cloudy early, Clear Day to Partly Cloudy PM, Much Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		May 31, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		75		71		70		+5		90		in	1895		57		in	1912
Minimum Temperature		50		45		53		-3		67		in	1987		37		in	1961
Average Temperature		63		58		62		+1		78		in	1929		50		in	1961
Month Avg Max Temperature		65.5		66.6		65.0		+0.5		71.4		in	1991		57.7		in	1917
Month Avg Min Temperature		50.6		47.5		48.5		+2.1		52.8		in	2012		42.0		in	1967
Month Average Temperature		58.4		57.3		56.8		+1.5		60.7		in	1991		50.6		in	1967
High Heat Index										95		in	1929
Low Wind Chill															34		in	1961
Heating Degree Days		2		7		4		-2		15		in	1961		0		in	2022
Month Heating DD		216		243		255		-39		445		in	1967		169		in	2010
Season Heating DD		4947		4722		5459		-512		6528		in	1905		4475		in	2012
Cooling Degree Days		0		0		1		-1		13		in	1929		0		in	2024
Month Cooling DD		10		4		11		-1		46		in	1991		0		in	2008
Year Cooling DD		10		4		11		-1		46		in	1991		0		in	2008
Maximum Dew Point		54		60		59		-5		71		in	2022		38		in	1967
Minimum Dew Point		42		45		48		-6		61		in	2016		27		in	1967
Average  Dew Point		48		53		53		-5		65		in	2016		33		in	1967
Month Avg Max Dew Point		57.3		52.5		53.3		+4.0		58.1		in	2012		42.0		in	1967
Month Avg Min Dew Point		47.3		39.7		42.1		+5.2		49.0		in	2012		31.1		in	1967
Month Average Dew Point		52.5		46.4		47.7		+4.8		53.7		in	2012		36.5		in	1967
Precipitation		.00		.00		.10		-.10		4.87		in	1984
One Hour Rain		.00		.00						.57		in	1984
Half Hour Rain		.00		.00						.36		in	2017
Hourly Rain Rate		.00		.00						3.02		in	2017
Month Precipitation		6.24		3.44		3.31		+2.93		9.19		in	1948		.35		in	2015
Year Precipitation		29.16		20.67		19.17		+9.99		35.75		in	1983		11.62		in	1905
Snow		0.0		0.0		0.0		+0.0				in
Snow Depth		0		0		0		+0				in
Month Snow		0.0		0.0		0.0		+0.0		1.7		in	1977		0.0		in	Many
Season Snow		12.7		9.1		33.8		-21.1		84.1		in	1996		5.0		in	1998
		May 31, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		95%		98%		92%		+3%		100%		in	2018		43%		in	1954
Minimum Humidity		33%		65%		57%		-24%		95%		in	1984		23%		in	1954
Average Humidity		64%		82%		75%		-11%		98%		in	1984		33%		in	1954
Maximum Barometer		30.10		30.25		30.03		+00.07		30.48		in	1902		29.70		in	2003
Minimum Barometer		30.01		30.15		29.81		+00.20		30.15		in	2023		29.40		in	1991
Average Barometer		30.06		30.20		29.92		+00.14		30.20		in	1957		29.62		in	1983
Average Wind		5.2		3.5		5.8		-0.6		12.4		in	2020		1.8		in	1991
Direction		NNW		SSW		SSW				NW					SSE
High Wind Gust		22		13		21		+1		33		in	1962		13		in	2023
Direction		SSW		SSW		SSW				SW					SSW
Maximum Water Temp		61.9		63.0		60.4		+1.5		66.7		in	2007		54.1		in	2020
Minimum Water Temp		59.0		60.3		56.5		+2.5		62.1		in	2012		50.2		in	2020
Average Water Temp		60.5		61.7		58.5		+1.9		63.8		in	2012		52.2		in	2020
Sunrise/ AM Twilight		5:13:40 AM						4:40:31 AM
Sunset / PM Twilight		8:12:27 PM						8:45:43 PM
Length Of Day		14:58:47
Special Conditions		None
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