Portsmouth Rhode Island Weather Almanac
Wednesday, May 31, 2023
Cloudy early then Clear, Afternoon Haze, Light Winds and Continued Cool
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2023
		May 31, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Temperature		71		85		70		+1		90		in	1895		57		in	1912
Minimum Temperature		45		56		53		-8		67		in	1987		37		in	1961
Average Temperature		58		71		62		-4		78		in	1929		50		in	1961
Month Avg Max Temperature		66.6		67.3		65.0		+1.6		71.4		in	1991		57.7		in	1917
Month Avg Min Temperature		47.5		50.6		48.5		-1.0		52.8		in	2012		42.0		in	1967
Month Average Temperature		57.3		59.2		56.8		+0.5		60.7		in	1991		50.6		in	1967
High Heat Index				91						95		in	1929
Low Wind Chill															34		in	1961
Heating Degree Days		7		0		4		+3		15		in	1961		0		in	2022
Month Heating DD		243		203		255		-12		445		in	1967		169		in	2010
Season Heating DD		4722		4985		5428		-706		6528		in	1905		4475		in	2012
Cooling Degree Days		0		6		1		-1		13		in	1929				in
Month Cooling DD		4		23		11		-7		46		in	1991		0		in	2008
Year Cooling DD		9		23		11		-2		46		in	1991		0		in	2008
Maximum Dew Point		60		71		59		+1		71		in	2022		38		in	1967
Minimum Dew Point		45		51		48		-3		61		in	2016		27		in	1967
Average  Dew Point		53		61		53		+0		65		in	2016		33		in	1967
Month Avg Max Dew Point		52.5		56.1		53.3		-0.7		58.1		in	2012		42.0		in	1967
Month Avg Min Dew Point		39.7		44.5		42.1		-2.4		49.0		in	2012		31.1		in	1967
Month Average Dew Point		46.4		50.6		47.7		-1.3		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
Hourly Rain Rate		.00		.00						3.02		in	2017
Month Precipitation		3.44		2.80		3.31		+.13		9.19		in	1948		.35		in	2015
Year Precipitation		20.67		19.20		19.04		+1.63		35.75		in	1983		11.62		in	1905
Snow		0.0		0.0		0.0		+0.0		0.0		in					in
Snow Depth		0		0						0		in					in
Month Snow		0.0		0.0		0.0		+0.0		0.0		in	0		0.0		in	0
Season Snow		9.1		34.7		33.5		-24.4		84.1		in	1996		5.0		in	1998
		May 31, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Humidity		98%		88%		92%		+6%		100%		in	2018		43%		in	1954
Minimum Humidity		65%		58%		57%		+8%		95%		in	1984		23%		in	1954
Average Humidity		82%		73%		75%		+7%		98%		in	1984		33%		in	1954
Maximum Barometer		30.25		30.03		30.03		+00.22		30.48		in	1902		29.70		in	2003
Minimum Barometer		30.15		29.90		29.81		+00.34		30.15		in	2023		29.40		in	1991
Average Barometer		30.20		29.97		29.92		+00.28		30.20		in	2023		29.62		in	1983
Average Wind		3.5		6.0		5.8		-2.3		12.4		in	2020		1.8		in	1991
Direction		SSW		ESE		SSW				NW					SSE
High Wind Gust		13		20		21		-8		33		in	1962		13		in	2023
Direction		#N/A		#N/A		S				SW					SSW
Maximum Water Temp		63.0		62.6		60.4		+2.6		66.7		in	2007		54.1		in	2020
Minimum Water Temp		60.3		59.7		56.4		+3.9		62.1		in	2012		50.2		in	2020
Average Water Temp		61.7		61.2		58.5		+3.2		63.8		in	2012		52.2		in	2020
Sunrise/ AM Twilight		5:14:01 AM						4:40:31 AM
Sunset / PM Twilight		8:11:52 PM						8:45:43 PM
Length Of Day		14:57:51
Special Conditions		Haze
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