Portsmouth Rhode Island Weather Almanac
Saturday, April 29, 2023
Cloudy, Heavy Rain & Fog Late, Breezy with Seasonal Temps
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2023
		April 29, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Temperature		57		58		60		-3		82		in	1903		43		in	1898
Minimum Temperature		47		39		43		+4		52		in	2017		30		in	1992
Average Temperature		52		49		52		+0		65		in	1903		40		in	1909
Month Avg Max Temperature		59.1		56.8		55.0		+4.1		61.0		in	1976		48.4		in	1907
Month Avg Min Temperature		43.0		40.6		39.2		+3.8		43.0		in	2010		33.8		in	1943
Month Average Temperature		51.3		48.9		47.4		+3.9		51.7		in	2010		41.9		in	1907
High Heat Index										81		in	1903
Low Wind Chill		42		32		37		+5							23		in	1992
Heating Degree Days		13		16		13		+0		25		in	1909		0		in	1903
Month HDD		402		467		510		-108		671		in	1907		386		in	2010
Season HDD		4469		4767		5160		-691		6242		in	1904		4271		in	2012
Cooling Degree Days		0		0		0		+0		0		in					in
Month CDD		5		0		0		+5		13		in	1976				in
Year CDD		5		0		0		+5		13		in	1976				in
Maximum Dew Point		50		28		48		+2		63		in	2017		27		in	1967
Minimum Dew Point		40		17		35		+5		48		in	2017		10		in	2012
Average  Dew Point		45		23		41		+4		56		in	2017		22		in	1977
Month Avg Max Dew Point		47.4		43.6		42.8		+4.7		47.6		in	2017		34.2		in	1965
Month Avg Min Dew Point		35.4		29.4		29.6		+5.8		37.3		in	2017		20.3		in	1982
Month Average Dew Point		41.4		36.5		36.1		+5.3		42.4		in	2017		28.7		in	1975
Precipitation		.48		.00		.14		+.34		2.19		in	1980
One Hour		.16		.00						.94		in	1980
Hourly Rate		.40		.00						1.35		in	2008
Month Precipitation		2.03		3.50		4.13		-2.10		11.94		in	1983		.47		in	1963
Year Precipitation		15.53		16.40		15.59		-.06		31.21		in	1983		7.53		in	1985
Snow		0.0		0.0		0.0		+0.0		1.3		in	1909				in
Snow Depth		0		0						0		in					in
Month Snow		0.0		0.0		0.5		-0.5		9.6		in	1996		0.0		in	2023
Season Snow		9.1		34.2		33.5		-24.4		84.1		in	1996		5.0		in	1998
		April 29, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Humidity		98%		47%		87%		+11%		100%		in	2011		47%		in	2022
Minimum Humidity		59%		24%		49%		+10%		91%		in	1956		16%		in	2012
Average Humidity		79%		36%		68%		+11%		95%		in	1958		36%		in	2022
Maximum Barometer		30.14		30.05		30.07		+00.07		30.51		in	2001		29.71		in	1987
Minimum Barometer		29.87		29.90		29.84		+00.04		30.38		in	2001		29.25		in	1987
Average Barometer		30.01		29.98		29.95		+00.05		30.45		in	2001		29.48		in	1987
Average Wind		9.2		11.7		7.1		+2.1		13.4		in	1958		2.3		in	2007
Direction		E		NW		N				E					SSE
High Wind Gust		27		31		24		+3		42		in	2010		12		in	2007
Direction		E		NW		SW				WNW					ESE
Maximum Water Temp		53.1		49.3		50.3		+2.8		55.6		in	2007		43.5		in	2020
Minimum Water Temp		50.7		47.1		47.3		+3.4		52.5		in	2012		#N/A		in	2020
Average Water Temp		51.9		48.2		48.8		+3.1		53.6		in	2012		42.0		in	2020
Sunrise/ AM Twilight		5:44:55 AM						5:13:14 AM
Sunset / PM Twilight		7:40:37 PM						8:11:57 PM
Length Of Day		13:55:42
Special Conditions		Fog
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