Portsmouth Rhode Island Weather Almanac
Thursday, April 11, 2024
Dense Fog early, then Cloudy, Light Rain, Continued Warm
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		April 11, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		55		68		54		+1		77		in	1955		36		in	1918
Minimum Temperature		48		40		38		+10		48		in	2024		24		in	1909
Average Temperature		52		54		46		+6		62		in	1955		34		in	1918
Month Avg Max Temperature		51.5		55.0		52.0		-0.5		62.8		in	2010		41.5		in	2003
Month Avg Min Temperature		38.1		38.3		36.8		+1.3		44.4		in	2010		27.9		in	1982
Month Average Temperature		45.0		46.9		44.7		+0.3		53.8		in	2010		36.8		in	2003
High Heat Index												in
Low Wind Chill		44		37		31		+13							17		in	1909
Heating Degree Days		13		11		19		-6		31		in	1918		3		in	1955
Month Heating DD		220		199		223		-3		310		in	2003		123		in	2010
Season Heating DD		4449		4266		4904		-455		5922		in	1918		4053		in	2012
Cooling Degree Days		0		0		0		+0				in			0		in	Many
Month Cooling DD		0		0		0		+0		0		in	2024		0		in	Many
Year Cooling DD		726		784		609		+117		871		in	2020		290		in	1902
Maximum Dew Point		53		43		41		+12		56		in	1993		18		in	1970
Minimum Dew Point		46		33		28		+18		47		in	1993		6		in	1967
Average  Dew Point		50		38		35		+15		52		in	1993		14		in	1970
Month Avg Max Dew Point		41.3		43.7		39.8		+1.5		50.5		in	2010		26.3		in	1965
Month Avg Min Dew Point		32.8		26.8		26.4		+6.5		38.3		in	2010		11.2		in	1982
Month Average Dew Point		37.0		35.3		33.1		+4.0		44.4		in	2010		19.8		in	1982
Precipitation		.09		.00		.14		-.05		1.27		in	2003
One Hour Rain		.06		.00						.34		in	2003
Half Hour Rain		.04		.00						.05		in	2009
Hourly Rain Rate		.23		.00						.23		in	2024
Month Precipitation		2.45		.70		1.61		+.84		5.72		in	1983		.03		in	1963
Year Precipitation		21.29		14.20		13.20		+8.09		24.99		in	1983		6.50		in	2012
Snow		0.0		0.0		0.0		+0.0		3.5		in	1958
Snow Depth		0		0		0		+0		7		in	1996
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 11, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		99%		86%		85%		+14%		100%		in	2021		51%		in	1970
Minimum Humidity		93%		28%		45%		+48%		93%		in	2024		20%		in	1991
Average Humidity		96%		57%		65%		+31%		96%		in	2024		39%		in	1967
Maximum Barometer		30.09		30.27		30.08		+00.01		30.69		in	2002		29.46		in	1963
Minimum Barometer		29.88		29.80		29.82		+00.06		30.51		in	2002		29.14		in	1983
Average Barometer		29.99		30.04		29.95		+00.03		30.60		in	2002		29.40		in	1963
Average Wind		6.7		7.5		8.1		-1.4		14.9		in	2003		2.5		in	2004
Direction		SE		SSW		SW				NNE					NNW
High Wind Gust		31		29		26		+5		48		in	1990		12		in	2004
Direction		SSE		SSW		ssw				SW					NW
Maximum Water Temp		45.5		48.4		45.7		-0.2		52.2		in	2010		39.5		in	2003
Minimum Water Temp		53.9		46.6		43.2		+10.7		49.9		in	2010		38.2		in	2003
Average Water Temp		49.7		47.5		44.5		+5.2		51.1		in	2010		38.9		in	2003
Sunrise/ AM Twilight		6:10:42 AM						5:41:20 AM
Sunset / PM Twilight		7:21:52 PM						7:50:40 PM
Length Of Day		13:11:10
Special Conditions		Dense Fog
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