Portsmouth Rhode Island Weather Almanac
Monday, May 3, 2021
Partly Cloudy to Cloudy, Rain & Fog PM, Light Winds and Continued Warm
Climate Normal Period						Climate Record Period
1991- 2020						1893 - 2021
		May 3, 2021								Record					Record
Observed Daily Data		2021		2020		Norm		Depart		Highest					Lowest
Maximum Temperature		71		64		61		+10		86		in	2001		45		in	1898
Minimum Temperature		50		52		45		+5		59		in	2001		32		in	1964
Average Temperature		61		58		53		+8		73		in	2001		42		in	1911
Month Avg Max Temperature		69.0		66.3		60.3		+8.7		82.7		in	2001		49.0		in	1962
Month Avg Min Temperature		46.3		50.0		44.7		+1.7		54.0		in	2010		35.3		in	1964
Month Average Temperature		58.0		58.3		52.7		+5.3		68.3		in	2001		44.3		in	1941
HDD		4		7		12		-8		23		in	1911		0		in	2001
Month HDD		21		20		37		-16		62		in	1941		1		in	2001
Season HDD		4830		4841		5210		-380		6298		in	1904		4335		in	2012
CDD		0		0		0		+0		8		in	2001		0		in
Month CDD		0		0		0		+0		11		in	2001		0		in	2021
Year CDD		0		0		0		+0		13		in	1976		0		in	2021
Maximum Dew Point		52		55		49		+3		66		in	2010		25		in	1986
Minimum Dew Point		44		44		37		+7		55		in	2010		9		in	1957
Average  Dew Point		48		50		43		+5		61		in	2010		18		in	1957
Month Avg Max Dew Point		50.3		55.3		48.7		+1.7		59.0		in	2010		26.3		in	1952
Month Avg Min Dew Point		33.7		42.3		36.7		-3.0		49.0		in	2004		15.7		in	1974
Month Average Dew Point		42.0		49.0		42.7		-0.7		53.2		in	2010		22.7		in	1957
Precipitation		.19		T		.12		+.07		2.85		in	1900
One Hour		.10		T						.55		in	2019
Hourly Rate		.32		.00						1.95		in	2019
Month Precipitation		.27		.90		.37		-.10		2.85		in	1900		.00		in	2015
Year Precipitation		11.97		17.10		16.10		-4.13		31.21		in	1983		9.77		in	1927
Snow		0.0		0.0		0.0		+0.0		0.0		in
Snow Depth		0		0						0		in
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 3, 2021								Record					Record
Observed Daily Data		2021		2020		Norm		Depart		Highest					Lowest
Maximum Humidity		96%		84%		87%		+9%		100%		in	2004		49%		in	1957
Minimum Humidity		38%		61%		51%		-13%		94%		in	2004		13%		in	1963
Average Humidity		67%		73%		69%		-2%		97%		in	2004		39%		in	1963
Maximum Barometer		29.91		29.88		30.05		-00.14		30.51		in	1993		29.69		in	1951
Minimum Barometer		29.81		29.62		29.81		-00.00		30.42		in	1993		29.13		in	1929
Average Barometer		29.86		29.75		29.93		-00.07		30.47		in	1993		29.53		in	1971
Average Wind		4.1		8.1		7.3		-3.2		14.9		in	2002		2.9		in	2009
Direction		SSE		S		SSE				WNW					SSW
High Wind Gust		14		24		24		-10		48		in	1981		11		in	2012
Direction		NE		SSW		SSE				NE					ESE
High Heat Index										85		in	2001
Wind Chill															26		in	1986
Maximum Water Temp		51.3		46.8		51.3		-0.0		58.6		in	2007		46.8		in	2020
Minimum Water Temp		47.8		43.9		48.0		-0.2		51.2		in	2013		43.9		in	2020
Average Water Temp		49.6		45.4		49.7		-0.1		54.6		in	2007		45.4		in	2020
Sunrise/ AM Twilight		5:38:05 AM						5:07:41 AM
Sunset / PM Twilight		7:45:58 PM						8:16:21 PM
Length Of Day		14:07:53
Special Conditions		Fog
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