Portsmouth Rhode Island Weather Almanac
Sunday, May 2, 2021
Cloudy early, Partly Cloudy Day to Mostly Cloudy and Light Rain PM, Much Warmer
Climate Normal Period						Climate Record Period
1991- 2020						1893 - 2021
		May 2, 2021								Record					Record
Observed Daily Data		2021		2020		Norm		Depart		Highest					Lowest
Maximum Temperature		72		70		60		+12		85		in	2001		45		in	1953
Minimum Temperature		49		48		45		+4		58		in	1894		33		in	1895
Average Temperature		61		59		53		+8		70		in	1894		41		in	1941
Month Avg Max Temperature		68.0		67.5		60.0		+8.0		81.0		in	2001		47.5		in	1962
Month Avg Min Temperature		44.5		49.0		44.5		+0.0		56.0		in	1894		35.0		in	1978
Month Average Temperature		56.5		58.5		52.5		+4.0		66.5		in	1894		43.5		in	1941
HDD		4		6		12		-8		24		in	1941		0		in	2001
Month HDD		17		13		25		-8		43		in	1941		1		in	2001
Season HDD		4826		4834		5198		-372		6282		in	1904		4319		in	2012
CDD		0		0		0		+0		5		in	1894		0		in
Month CDD		0		0		0		+0		5		in	1894		0		in	2021
Year CDD		0		0		0		+0		13		in	1976		0		in	2021
Maximum Dew Point		55		53		49		+6		62		in	1989		25		in	1957
Minimum Dew Point		29		35		37		-8		51		in	2004		9		in	1974
Average  Dew Point		42		44		43		-1		55		in	2010		18		in	1974
Month Avg Max Dew Point		49.5		55.5		48.5		+1.0		58.0		in	2017		25.5		in	1952
Month Avg Min Dew Point		28.5		41.5		36.5		-8.0		49.0		in	2004		10.5		in	1974
Month Average Dew Point		39.0		48.5		42.5		-3.5		53.0		in	2004		23.3		in	1952
Precipitation		.01		.02		.12		-.11		1.40		in	1989
One Hour		.01		.02						.65		in	1989
Hourly Rate		.00		.00						1.70		in	2017
Month Precipitation		.08		.90		.25		-.17		1.50		in	1989		.00		in	2018
Year Precipitation		11.78		17.10		15.98		-4.20		31.21		in	1983		7.90		in	1985
Snow		0.0		0.0		0.0		+0.0		T		in	1941
Snow Depth		0		0								in	2021
Month Snow		0.0		0.0		0.0		+0.0		T		in	1995		0.0		in	2021
Season Snow		27.7		12.9		33.5		-5.8		84.1		in	1996		5.0		in	1998
		May 2, 2021								Record					Record
Observed Daily Data		2021		2020		Norm		Depart		Highest					Lowest
Maximum Humidity		85%		94%		87%		-2%		100%		in	2019		48%		in	1957
Minimum Humidity		43%		29%		50%		-7%		89%		in	1998		17%		in	1951
Average Humidity		64%		62%		69%		-5%		95%		in	1998		34%		in	1957
Maximum Barometer		29.84		29.90		30.06		-00.22		30.52		in	1903		29.72		in	1978
Minimum Barometer		29.64		29.67		29.83		-00.19		30.35		in	2013		29.38		in	1989
Average Barometer		29.74		29.79		29.95		-00.21		30.41		in	2013		29.60		in	1968
Average Wind		7.8		11.2		7.6		+0.2		14.8		in	2006		3.8		in	2015
Direction		SW		NNW		WNW				N					S
High Wind Gust		25		31		26		-1		42		in	1997		13		in	1972
Direction		SW		NNW		NE				WNW					NE
High Heat Index										83		in	2001
Wind Chill															29		in	1941
Maximum Water Temp		51.3		45.9		51.3		+0.0		58.6		in	2007		45.9		in	2020
Minimum Water Temp		48.7		41.9		47.8		+0.9		52.0		in	2010		41.9		in	2020
Average Water Temp		50.0		43.9		49.5		+0.5		55.1		in	2007		43.9		in	2020
Sunrise/ AM Twilight		5:39:20 AM						5:09:03 AM
Sunset / PM Twilight		7:44:54 PM						8:15:11 PM
Length Of Day		14:05:34
Special Conditions		None
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