Portsmouth Rhode Island Weather Almanac
Sunday, May 19, 2024
Cloudy, Very Light Rain Shower early, Windy, Continued Cool
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		May 19, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		58		62		66		-8		83		in	2017		47		in	1950
Minimum Temperature		51		45		49		+2		61		in	2017		34		in	1981
Average Temperature		55		54		58		-3		72		in	2017		46		in	1994
Month Avg Max Temperature		61.5		65.5		63.0		-1.5		69.0		in	2001		55.1		in	1917
Month Avg Min Temperature		47.7		46.8		46.7		+1.0		50.1		in	1930		40.9		in	1967
Month Average Temperature		54.9		56.4		54.9		+0.0		59.5		in	1930		48.5		in	1917
High Heat Index										85		in	2017
Low Wind Chill		45		42											31		in	1981
Heating Degree Days		10		11		7		+3		19		in	1994		0		in	2021
Month Heating DD		192		168		192		+0		314		in	1917		110		in	1993
Season Heating DD		4923		4647		5396		-473		6444		in	1905		4458		in	2012
Cooling Degree Days		0		0		0		+0		7		in	2017		0		in	2024
Month Cooling DD		0		4		0		+0		27		in	2001		0		in	2024
Year Cooling DD		0		4		0		+0		27		in	2001		0		in	2024
Maximum Dew Point		54		53		54		+0		68		in	2017		36		in	1981
Minimum Dew Point		48		40		43		+5		57		in	2011		27		in	1981
Average  Dew Point		51		47		49		+2		61		in	2011		32		in	1981
Month Avg Max Dew Point		53.8		51.2		51.2		+2.6		56.9		in	2004		41.8		in	1966
Month Avg Min Dew Point		44.1		37.2		39.7		+4.4		46.5		in	1953		29.8		in	1966
Month Average Dew Point		49.2		44.5		45.4		+3.7		50.5		in	1998		35.8		in	1966
Precipitation		.01		.00		.10		-.09		1.56		in	1901
One Hour Rain		.01		.00						.89		in	2011
Half Hour Rain		.01		.00						.66		in	2011
Hourly Rain Rate		.00		.00						5.76		in	2011
Month Precipitation		5.04		.67		2.11		+2.93		6.87		in	2006		.09		in	2001
Year Precipitation		27.96		17.90		17.97		+9.99		33.69		in	1983		10.75		in	1927
Snow		0.0		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 19, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		96%		90%		92%		+4%		100%		in	2018		66%		in	1955
Minimum Humidity		82%		62%		57%		+25%		95%		in	2015		23%		in	2003
Average Humidity		89%		76%		75%		+14%		98%		in	2015		48%		in	1955
Maximum Barometer		30.05		30.41		30.08		-00.03		30.57		in	1983		29.49		in	1976
Minimum Barometer		29.94		30.28		29.87		+00.07		30.30		in	2009		29.22		in	1976
Average Barometer		30.00		30.35		29.97		+00.02		30.42		in	1983		29.36		in	1976
Average Wind		13.7		8.3		7.1		+6.6		15.2		in	1988		2.4		in	1989
Direction		NNE		S		NE				NNE					SSE
High Wind Gust		28		24		24		+4		44		in	1964		12		in	1996
Direction		N		SSW		NE				SW					SSE
Maximum Water Temp		55.4		56.8		55.8		-0.4		60.9		in	2017		49.8		in	2020
Minimum Water Temp		54.1		55.2		52.8		+1.3		57.2		in	2013		45.7		in	2020
Average Water Temp		54.8		56.0		54.3		+0.4		58.7		in	1998		47.8		in	2020
Sunrise/ AM Twilight		5:21:37 AM						4:49:17 AM
Sunset / PM Twilight		8:02:05 PM						8:34:18 PM
Length Of Day		14:40:28
Special Conditions		Fog
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