Portsmouth Rhode Island Weather Almanac
Tuesday, May 16, 2023
Mostly Cloudy early, Clear Day to Partly Cloudy PM, Breezy and Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2023
		May 16, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Temperature		71		69		65		+6		81		in	1951		48		in	1958
Minimum Temperature		53		53		48		+5		59		in	2014		36		in	1936
Average Temperature		62		61		57		+5		68		in	1896		46		in	1936
Month Avg Max Temperature		66.7		63.3		62.5		+4.2		70.2		in	1993		52.8		in	1917
Month Avg Min Temperature		47.9		47.8		46.3		+1.6		50.2		in	1930		40.2		in	1967
Month Average Temperature		57.5		55.8		54.4		+3.1		60.2		in	1930		46.8		in	1917
High Heat Index										81		in	1951
Low Wind Chill															34		in	2016
Heating Degree Days		3		4		8		-5		19		in	1936		0		in	1960
Month Heating DD		124		150		169		-45		292		in	1917		84		in	1993
Season Heating DD		4603		4932		5342		-739		6409		in	1905		4441		in	2012
Cooling Degree Days		0		0		0		-0		3		in	1896				in
Month Cooling DD		4		3		0		+4		27		in	2001		0		in	2021
Year Cooling DD		9		3		0		+9		27		in	2001		0		in	2021
Maximum Dew Point		55		62		53		+2		65		in	1972		35		in	2016
Minimum Dew Point		40		53		42		-2		58		in	2014		21		in	1987
Average  Dew Point		48		58		48		+0		59		in	2014		30		in	1987
Month Avg Max Dew Point		51.6		51.4		50.6		+0.9		56.3		in	2004		40.3		in	1966
Month Avg Min Dew Point		39.1		40.3		39.1		+0.0		45.7		in	1998		27.6		in	1966
Month Average Dew Point		45.7		46.2		44.9		+0.8		50.2		in	1998		33.9		in	1966
Precipitation		.00		.40		.10		-.10		1.52		in	1983
One Hour Rain		.00		.39						.81		in	2012
Hourly Rain Rate		.00		3.45						4.72		in	2012
Month Precipitation		.67		1.45		1.81		-1.14		6.51		in	2006		.02		in	2015
Year Precipitation		17.90		17.85		17.54		+.36		33.65		in	1983		10.59		in	1927
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		1.7		in	1977		0.0		in	2023
Season Snow		9.1		34.7		33.5		-24.4		84.1		in	1996		5.0		in	1998
		May 16, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Humidity		94%		99%		91%		+3%		100%		in	2009		61%		in	1960
Minimum Humidity		32%		80%		55%		-23%		94%		in	1961		21%		in	1987
Average Humidity		63%		90%		73%		-10%		97%		in	1961		44%		in	1987
Maximum Barometer		29.89		29.82		30.07		-00.18		30.61		in	1992		29.67		in	1954
Minimum Barometer		29.49		29.59		29.82		-00.33		30.36		in	2003		29.48		in	2006
Average Barometer		29.69		29.71		29.94		-00.25		30.41		in	2003		29.60		in	1997
Average Wind		7.8		7.1		6.8		+1.0		15.8		in	1985		2.2		in	1975
Direction		W		SW		SW				SSW					SSE
High Wind Gust		31		24		23		+8		48		in	1929		12		in	1975
Direction		SSW		SSW		SSW				W					NNE
Maximum Water Temp		59.9		55.9		55.1		+4.8		60.6		in	2007		50.0		in	2020
Minimum Water Temp		56.7		53.6		51.7		+5.0		56.7		in	2023		45.0		in	2020
Average Water Temp		58.3		54.8		53.4		+4.9		58.3		in	2023		47.5		in	2020
Sunrise/ AM Twilight		5:25:01 AM						4:52:12 AM
Sunset / PM Twilight		7:58:26 PM						8:31:06 PM
Length Of Day		14:33:25
Special Conditions		None
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