Portsmouth Rhode Island Weather Almanac
Sunday, April 28, 2024
Cloudy, Light Rain and Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		April 28, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		59		61		59		+0		82		in	1990		39		in	1898
Minimum Temperature		43		42		43		+0		55		in	1935		32		in	1992
Average Temperature		51		52		51		+0		67		in	1935		38		in	1916
Month Avg Max Temperature		55.1		59.2		54.8		+0.3		61.0		in	1976		48.0		in	1907
Month Avg Min Temperature		39.8		42.9		39.1		+0.6		43.0		in	2010		33.6		in	1943
Month Average Temperature		47.7		51.3		47.3		+0.4		51.6		in	2010		41.5		in	1907
High Heat Index										82		in	1990
Low Wind Chill		38		40		36		+2							22		in	1993
Heating Degree Days		14		13		14		+0		27		in	1916		0		in	1990
Month Heating DD		485		389		497		-12		657		in	1907		374		in	2010
Season Heating DD		4714		4456		5178		-464		6229		in	1904		4256		in	2012
Cooling Degree Days		0		0		0		+0		2		in	1935		0		in	Many
Month Cooling DD		0		5		0		+0		13		in	1976		0		in	Many
Year Cooling DD		0		5		0		+0		13		in	1976		0		in	Many
Maximum Dew Point		52		49		47		+5		60		in	2017		26		in	1967
Minimum Dew Point		36		42		34		+2		53		in	2011		5		in	1993
Average  Dew Point		44		46		41		+3		57		in	2011		19		in	1993
Month Avg Max Dew Point		43.8		47.4		42.6		+1.3		47.4		in	2023		34.0		in	1965
Month Avg Min Dew Point		33.1		35.2		29.4		+3.8		36.9		in	2017		20.4		in	1982
Month Average Dew Point		38.5		41.3		36.0		+2.5		42.0		in	2017		28.6		in	1975
Precipitation		.08		.00		.14		-.06		2.93		in	1904
One Hour Rain		.03		.00						.53		in	1988
Half Hour Rain		.02		.00						.10		in	2005
Hourly Rain Rate		.00		.00						.84		in	2008
Month Precipitation		4.06		1.55		3.99		+.07		11.94		in	1983		.47		in	1963
Year Precipitation		22.90		15.05		15.58		+7.32		31.21		in	1983		7.53		in	1985
Snow		0.0		0.0		0.0		+0.0		0.0		in
Snow Depth		0		0		0		+0		0		in
Month Snow		0.0		0.0		0.5		-0.5		9.6		in	1996		0.0		in	2024
Season Snow		12.7		9.1		33.8		-21.1		84.1		in	1996		5.0		in	1998
		April 28, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		96%		99%		89%		+7%		100%		in	2018		54%		in	1967
Minimum Humidity		64%		56%		51%		+13%		96%		in	2011		18%		in	2001
Average Humidity		80%		78%		70%		+10%		98%		in	2011		41%		in	1972
Maximum Barometer		30.35		30.26		30.07		+00.28		30.68		in	1966		29.60		in	2010
Minimum Barometer		29.99		30.14		29.82		+00.17		30.33		in	1966		29.20		in	1973
Average Barometer		30.17		30.20		29.95		+00.22		30.51		in	1966		29.40		in	1973
Average Wind		7.0		6.0		7.8		-0.8		19.9		in	1967		1.1		in	1965
Direction		S		SSE		N				NNE					S
High Wind Gust		20		21		26		-6		51		in	1967		13		in	2007
Direction		SSW		S		N				NNE					SSE
Maximum Water Temp		49.6		53.1		49.7		-0.1		55.6		in	2007		41.4		in	2020
Minimum Water Temp		48.2		51.6		47.2		+1.0		51.6		in	2023		39.4		in	2020
Average Water Temp		48.9		52.4		48.5		+0.4		52.6		in	2012		40.4		in	2020
Sunrise/ AM Twilight		5:45:15 AM						5:14:40 AM
Sunset / PM Twilight		7:40:22 PM						8:10:30 PM
Length Of Day		13:55:07
Special Conditions		None
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