Portsmouth Rhode Island Weather Almanac
Saturday, May 11, 2024
Partly Cloudy and Cooler
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		May 11, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		58		75		63		-5		82		in	2001		46		in	1919
Minimum Temperature		41		48		47		-6		59		in	2015		34		in	1900
Average Temperature		50		62		55		-5		69		in	2001		44		in	1963
Month Avg Max Temperature		61.3		63.9		61.6		-0.4		72.6		in	2001		51.1		in	1917
Month Avg Min Temperature		45.9		46.4		45.6		+0.3		51.4		in	1930		39.1		in	1917
Month Average Temperature		53.9		55.4		53.7		+0.2		62.1		in	1930		45.4		in	1917
High Heat Index										81		in	1993
Low Wind Chill		37													32		in	1900
Heating Degree Days		15		3		10		+5		21		in	1963		0		in	2015
Month Heating DD		122		106		124		-2		216		in	1917		44		in	1930
Season Heating DD		4853		4585		5328		-475		6359		in	1905		4418		in	2012
Cooling Degree Days		0		0		0		+0		4		in	2001		0		in	2024
Month Cooling DD		0		0		0		+0		23		in	2001		0		in	2024
Year Cooling DD		0		0		0		+0		23		in	2001		0		in	2024
Maximum Dew Point		45		53		52		-7		65		in	2015		32		in	1966
Minimum Dew Point		36		44		40		-4		59		in	2015		19		in	1966
Average  Dew Point		41		49		46		-5		62		in	2015		26		in	1966
Month Avg Max Dew Point		52.4		50.1		49.8		+2.5		56.2		in	1998		37.8		in	1952
Month Avg Min Dew Point		42.3		39.0		38.2		+4.1		48.6		in	1998		26.2		in	1968
Month Average Dew Point		47.6		44.9		44.0		+3.6		52.4		in	1998		32.7		in	1968
Precipitation		.00		.00		.11		-.11		1.54		in	1989
One Hour Rain		.00		.00						.41		in	1951
Half Hour Rain		.00		.00						.21		in	2013
Hourly Rain Rate		.00		.00						2.70		in	2013
Month Precipitation		1.64		.67		1.28		+.36		4.71		in	1989		.00		in	2015
Year Precipitation		24.56		17.90		17.14		+7.42		31.68		in	1983		10.12		in	1927
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 11, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		92%		85%		88%		+4%		100%		in	2015		55%		in	1966
Minimum Humidity		54%		37%		50%		+4%		97%		in	1989		22%		in	2001
Average Humidity		73%		61%		69%		+4%		99%		in	1989		40%		in	1966
Maximum Barometer		29.90		30.08		30.06		-00.16		30.43		in	1966		29.62		in	1954
Minimum Barometer		29.82		29.98		29.83		-00.01		30.30		in	2010		29.41		in	1990
Average Barometer		29.86		30.03		29.95		-00.09		30.36		in	2010		29.57		in	1954
Average Wind		8.6		5.6		7.6		+1.0		14.1		in	1986		3.1		in	2007
Direction		NNE		WNW		SSW				NNE					SSE
High Wind Gust		24		26		25		-1		43		in	1945		14		in	2007
Direction		NNE		SW		SSE				NW					S
Maximum Water Temp		52.9		57.9		53.9		-1.0		59.5		in	2007		44.4		in	2020
Minimum Water Temp		51.1		54.7		50.6		+0.5		55.7		in	2013		43.2		in	2020
Average Water Temp		52.0		56.3		52.3		-0.3		56.5		in	2013		43.8		in	2020
Sunrise/ AM Twilight		5:29:20 AM						4:57:39 AM
Sunset / PM Twilight		7:54:09 PM						8:25:34 PM
Length Of Day		14:24:49
Special Conditions		None
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