Portsmouth Rhode Island Weather Almanac
Saturday, April 27, 2024
Clear early then Partly Cloudy, Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		April 27, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		57		55		59		-2		81		in	1915		43		in	2020
Minimum Temperature		37		41		43		-6		53		in	2011		33		in	1987
Average Temperature		47		48		51		-4		66		in	1935		40		in	1898
Month Avg Max Temperature		55.0		59.1		54.7		+0.3		61.1		in	1976		47.9		in	1907
Month Avg Min Temperature		39.6		42.9		39.0		+0.7		43.3		in	2010		33.3		in	1943
Month Average Temperature		47.6		51.3		47.1		+0.4		52.0		in	2010		41.4		in	1907
High Heat Index										79		in	1935
Low Wind Chill		36		41		37		-1							23		in	1993
Heating Degree Days		18		17		14		+4		25		in	1898		0		in	1935
Month Heating DD		471		376		483		-12		637		in	1907		352		in	2010
Season Heating DD		4700		4443		5164		-464		6212		in	1904		4238		in	2012
Cooling Degree Days		0		0		0		+0		1		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		42		47		47		-5		60		in	2011		27		in	1966
Minimum Dew Point		32		39		34		-2		53		in	2011		6		in	1966
Average  Dew Point		37		43		40		-3		57		in	2011		17		in	1966
Month Avg Max Dew Point		43.5		47.3		42.4		+1.1		47.3		in	2019		33.7		in	1965
Month Avg Min Dew Point		33.0		35.0		29.2		+3.9		36.6		in	2010		20.1		in	1982
Month Average Dew Point		38.3		41.1		35.8		+2.5		41.6		in	2010		28.5		in	1965
Precipitation		.00		T		.14		-.14		1.77		in	1937
One Hour Rain		.00		T						.58		in	1982
Half Hour Rain		.00		.00						.35		in	2007
Hourly Rain Rate		.00		.00						3.79		in	2007
Month Precipitation		3.98		1.55		3.85		+.13		11.92		in	1983		.47		in	1963
Year Precipitation		22.82		15.05		15.44		+7.38		31.19		in	1983		7.51		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 27, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		93%		95%		89%		+4%		100%		in	2019		53%		in	1981
Minimum Humidity		40%		71%		52%		-12%		96%		in	1973		24%		in	1966
Average Humidity		67%		83%		71%		-4%		98%		in	1973		41%		in	1966
Maximum Barometer		30.55		30.26		30.06		+00.49		30.60		in	1966		29.45		in	2010
Minimum Barometer		30.35		30.20		29.82		+00.53		30.35		in	2024		29.20		in	2019
Average Barometer		30.45		30.23		29.94		+00.51		30.45		in	2024		29.33		in	2010
Average Wind		6.3		4.2		7.1		-0.8		17.7		in	2020		2.9		in	2008
Direction		SSW		SSW		SSW				N					E
High Wind Gust		29		20		24		+5		47		in	1947		11		in	2008
Direction		SSW		S		NNW				SW					ESE
Maximum Water Temp		50.7		52.3		49.5		+1.2		56.5		in	2007		40.8		in	2020
Minimum Water Temp		48.7		51.3		46.8		+1.9		52.0		in	2012		39.7		in	2020
Average Water Temp		49.7		51.8		48.2		+1.5		53.1		in	2012		40.3		in	2020
Sunrise/ AM Twilight		5:46:37 AM						5:16:08 AM
Sunset / PM Twilight		7:39:17 PM						8:09:20 PM
Length Of Day		13:52:40
Special Conditions		None
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