Portsmouth Rhode Island Weather Almanac
Thursday, May 6, 2021
Mostly Cloudy/Light Rain & Fog early, Clear Day to Partly Cloudy PM, Warmer
Climate Normal Period						Climate Record Period
1991- 2020						1893 - 2021
		May 6, 2021								Record					Record
Observed Daily Data		2021		2020		Norm		Depart		Highest					Lowest
Maximum Temperature		65		57		62		+3		85		in	1930		42		in	1917
Minimum Temperature		47		39		46		+1		55		in	1930		34		in	1917
Average Temperature		56		48		54		+2		70		in	1930		38		in	1917
Month Avg Max Temperature		62.8		65.0		60.8		+2.0		76.8		in	2001		48.5		in	1917
Month Avg Min Temperature		47.0		47.2		45.0		+2.0		54.2		in	2010		37.0		in	1964
Month Average Temperature		55.2		56.3		53.0		+2.2		64.3		in	2001		43.3		in	1917
HDD		9		17		11		-2		27		in	1917		0		in	1934
Month HDD		59		52		72		-13		130		in	1917		13		in	2010
Season HDD		4868		4873		5245		-377		6322		in	1904		4371		in	2012
CDD		0		0		0		+0		5		in	1930		0		in
Month CDD		0		0		0		+0		19		in	2001		0		in	2021
Year CDD		0		0		0		+0		19		in	2001		0		in	2021
Maximum Dew Point		49		41		50		-1		62		in	1950		33		in	1992
Minimum Dew Point		37		33		38		-1		53		in	1998		13		in	2001
Average  Dew Point		43		37		44		-1		56		in	2000		24		in	2001
Month Avg Max Dew Point		50.8		49.3		49.0		+1.8		57.3		in	2010		32.3		in	1952
Month Avg Min Dew Point		38.3		37.3		37.2		+1.2		48.8		in	1998		19.2		in	1974
Month Average Dew Point		44.7		43.5		43.2		+1.5		53.0		in	1998		28.3		in	1952
Precipitation		.01		.12		.12		-.11		.91		in	1967
One Hour		.01		.08						.30		in	2017
Hourly Rate		.00		.12						2.49		in	2017
Month Precipitation		1.37		1.07		.73		+.64		3.08		in	1922		.00		in	2015
Year Precipitation		13.07		17.27		16.46		-3.39		31.53		in	1983		9.78		in	1927
Snow		0.0		0.0		0.0		+0.0		T		in	1917
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 6, 2021								Record					Record
Observed Daily Data		2021		2020		Norm		Depart		Highest					Lowest
Maximum Humidity		95%		90%		90%		+5%		100%		in	2017		52%		in	1979
Minimum Humidity		36%		48%		52%		-16%		93%		in	1998		20%		in	2001
Average Humidity		66%		69%		71%		-5%		97%		in	1998		41%		in	1982
Maximum Barometer		29.93		29.94		30.05		-00.12		30.58		in	2001		29.62		in	1980
Minimum Barometer		29.73		29.76		29.83		-00.10		30.31		in	2001		29.41		in	1966
Average Barometer		29.83		29.85		29.94		-00.11		30.45		in	2001		29.55		in	1980
Average Wind		6.5		8.0		6.7		-0.2		11.9		in	2019		3.4		in	1971
Direction		NW		NE		NNE				N					SSW
High Wind Gust		27		18		23		+4		42		in	1989		13		in	1998
Direction		NW		SSE		NNE				S					ESE
High Heat Index										87		in	1930
Wind Chill				34											33		in	1992
Maximum Water Temp		52.3		45.3		52.5		-0.2		57.6		in	2010		45.3		in	2020
Minimum Water Temp		49.1		42.3		49.1		-0.0		55.5		in	2010		42.3		in	2020
Average Water Temp		50.7		43.8		50.9		-0.2		56.6		in	2010		43.8		in	2020
Sunrise/ AM Twilight		5:34:27 AM						5:03:45 AM
Sunset / PM Twilight		7:49:09 PM						8:19:50 PM
Length Of Day		14:14:42
Special Conditions		Light Fog
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