Portsmouth Rhode Island Weather Almanac
Monday, May 13, 2024
Cloudy early, Clear Day to Mostly Cloudy PM, Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		May 13, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		64		80		64		+0		85		in	1956		43		in	1914
Minimum Temperature		48		54		48		+0		56		in	2022		37		in	2020
Average Temperature		56		67		56		+0		67		in	2023		41		in	1914
Month Avg Max Temperature		61.2		66.2		62.0		-0.8		72.6		in	2001		50.9		in	1917
Month Avg Min Temperature		45.5		47.6		45.9		-0.4		50.9		in	1930		39.4		in	1917
Month Average Temperature		53.6		57.2		54.0		-0.4		61.6		in	1930		45.4		in	1917
High Heat Index										83		in	1956
Low Wind Chill															31		in	2020
Heating Degree Days		9		0		9		+0		24		in	1914		0		in	2023
Month Heating DD		148		106		143		+5		255		in	1917		56		in	1930
Season Heating DD		4879		4585		5347		-468		6378		in	1905		4429		in	2012
Cooling Degree Days		0		2		0		+0		2		in	2023		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		53		61		52		+1		66		in	2022		31		in	1967
Minimum Dew Point		43		41		41		+2		56		in	2022		19		in	2005
Average  Dew Point		48		51		46		+2		61		in	2022		28		in	2020
Month Avg Max Dew Point		52.0		51.5		50.2		+1.8		55.1		in	2004		39.8		in	1952
Month Avg Min Dew Point		41.8		39.8		38.5		+3.2		46.8		in	1998		27.4		in	1966
Month Average Dew Point		47.2		46.0		44.3		+2.8		50.5		in	1998		34.0		in	1966
Precipitation		.00		.00		.11		-.11		2.36		in	2006
One Hour Rain		.00		.00						1.07		in	2006
Half Hour Rain		.00		.00						.80		in	2006
Hourly Rain Rate		.00		.00						4.97		in	2006
Month Precipitation		1.67		.67		1.50		+.17		4.94		in	1989		T		in	2001
Year Precipitation		24.59		17.90		17.36		+7.23		31.75		in	1983		10.18		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 13, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		93%		88%		89%		+4%		100%		in	2022		55%		in	1967
Minimum Humidity		50%		32%		52%		-2%		94%		in	1979		20%		in	2007
Average Humidity		72%		60%		71%		+1%		97%		in	1979		41%		in	1977
Maximum Barometer		30.08		30.08		30.06		+00.02		30.50		in	1987		29.66		in	1952
Minimum Barometer		29.98		29.90		29.82		+00.16		30.31		in	1962		29.39		in	1974
Average Barometer		30.03		29.99		29.95		+00.08		30.36		in	1962		29.55		in	1977
Average Wind		6.9		4.3		7.0		-0.1		13.3		in	2008		3.0		in	1997
Direction		SSW		S		S				NNE					SSE
High Wind Gust		23		20		23		-0		46		in	2008		15		in	2022
Direction		SSW		SSW		SSW				NNE					S
Maximum Water Temp		56.5		59.5		54.2		+2.3		59.5		in	2023		46.0		in	2020
Minimum Water Temp		52.7		56.5		51.0		+1.7		56.5		in	2023		43.5		in	2020
Average Water Temp		54.6		58.0		52.6		+2.0		58.0		in	2023		44.8		in	2020
Sunrise/ AM Twilight		5:27:14 AM						4:55:23 AM
Sunset / PM Twilight		7:56:11 PM						8:27:48 PM
Length Of Day		14:28:57
Special Conditions		None
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