Portsmouth Rhode Island Weather Almanac
Thursday, April 4, 2024
Cloudy, Heavy Morning Rain and Fog to Partly Cloudy PM, Very Windy, Continued Cool
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		April 4, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		41		62		51		-10		65		in	1974		32		in	2016
Minimum Temperature		34		44		36		-2		48		in	1974		14		in	1954
Average Temperature		38		53		44		-6		57		in	1974		26		in	1954
Month Avg Max Temperature		46.3		53.5		50.8		-4.5		61.5		in	1986		38.0		in	1911
Month Avg Min Temperature		36.8		38.3		35.8		+1.0		42.8		in	2000		23.0		in	1954
Month Average Temperature		41.8		46.0		43.8		-2.0		51.8		in	1945		32.0		in	1911
High Heat Index										0		in	1900
Low Wind Chill		27		42		28		-1							3		in	1954
Heating Degree Days		27		12		21		+6		39		in	1954		8		in	1974
Month Heating DD		93		76		85		+8		126		in	1954		53		in	1945
Season Heating DD		4322		4143		4766		-444		5758		in	1918		3934		in	2012
Cooling Degree Days		0		0		0		+0				in			0		in	Many
Month Cooling DD		0		0		0		+0		3		in	2022		0		in	Many
Year Cooling DD		726		784		609		+117		871		in	2020		290		in	1902
Maximum Dew Point		40		54		39		+1		60		in	1974		11		in	1965
Minimum Dew Point		32		42		26		+6		48		in	1974		-1		in	1954
Average  Dew Point		36		48		32		+4		54		in	1974		5		in	1954
Month Avg Max Dew Point		41.8		48.8		38.8		+3.0		51.0		in	2010		14.5		in	1965
Month Avg Min Dew Point		32.5		25.5		25.3		+7.3		39.3		in	2010		5.3		in	1965
Month Average Dew Point		37.1		37.1		32.0		+5.1		45.1		in	2010		9.9		in	1965
Precipitation		.75		.06		.15		+.60		1.66		in	2017
One Hour Rain		.27		.05						.39		in	2007
Half Hour Rain		.13		.03						.25		in	2017
Hourly Rain Rate		.49		.37						1.54		in	2007
Month Precipitation		2.24		.65		.60		+1.64		2.99		in	1973		.00		in	2010
Year Precipitation		21.08		14.15		12.19		+8.89		21.34		in	1998		6.44		in	2012
Snow		0.0		0.0		0.1		-0.1		4.2		in	2016
Snow Depth		0		0		0		+0		5		in	1915
Month Snow		0.0		0.0		0.4		-0.4		7.9		in	1915		0.0		in	2024
Season Snow		12.7		9.1		33.7		-21.0		78.0		in	2005		5.0		in	1998
		April 4, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		99%		98%		87%		+12%		100%		in	2018		39%		in	1996
Minimum Humidity		84%		73%		49%		+35%		95%		in	1988		16%		in	1996
Average Humidity		92%		86%		68%		+24%		98%		in	1988		28%		in	1996
Maximum Barometer		29.53		30.22		30.02		-00.49		30.62		in	1991		29.29		in	1975
Minimum Barometer		29.16		30.04		29.69		-00.53		30.34		in	1962		28.83		in	1975
Average Barometer		29.35		30.13		29.86		-00.51		30.43		in	1962		29.06		in	1975
Average Wind		16.9		6.3		8.9		+8.0		19.3		in	1975		3.1		in	1966
Direction		ENE		SW		WNW				NW					SE
High Wind Gust		43		21		28		+15		58		in	1963		14		in	2001
Direction		ENE		SSW		WNW				WNW					SSE
Maximum Water Temp		43.3		47.7		43.6		-0.3		50.7		in	2010		39.9		in	2003
Minimum Water Temp		42.3		44.4		41.5		+0.8		47.3		in	2010		38.2		in	2003
Average Water Temp		42.8		46.1		42.6		+0.2		49.0		in	2010		39.1		in	2003
Sunrise/ AM Twilight		6:22:08 AM						5:53:09 AM
Sunset / PM Twilight		7:14:16 PM						7:42:41 PM
Length Of Day		12:52:08
Special Conditions		Fog
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