Portsmouth Rhode Island Weather Almanac
Friday, May 14, 2021
Clear to Partly Cloudy PM, Very Pleasant and Warmer
Climate Normal Period						Climate Record Period
1991- 2020						1893 - 2021
		May 14, 2021								Record					Record
Observed Daily Data		2021		2020		Norm		Depart		Highest					Lowest
Maximum Temperature		74		62		64		+10		81		in	1991		48		in	1931
Minimum Temperature		45		39		48		-3		56		in	2012		35		in	1996
Average Temperature		60		51		56		+4		67		in	1991		45		in	1931
Month Avg Max Temperature		63.2		60.8		62.1		+1.1		72.1		in	2001		52.2		in	1917
Month Avg Min Temperature		45.4		42.6		46.1		-0.6		50.6		in	1930		39.6		in	1967
Month Average Temperature		54.6		52.0		54.1		+0.5		61.2		in	1930		46.2		in	1917
HDD		5		14		9		-4		20		in	1931		0		in	1992
Month HDD		145		182		152		-7		263		in	1917		65		in	1930
Season HDD		4954		5003		5325		-371		6389		in	1905		4433		in	2012
CDD		0		0		0		+0		2		in	1991		0		in
Month CDD		0		0		0		+0		27		in	2001		0		in	2021
Year CDD		0		0		0		+0		27		in	2001		0		in	2021
Maximum Dew Point		45		47		52		-7		62		in	1985		33		in	1977
Minimum Dew Point		38		27		41		-3		54		in	1979		17		in	1994
Average  Dew Point		42		37		47		-5		58		in	1979		27		in	1994
Month Avg Max Dew Point		48.2		45.6		50.3		-2.1		55.1		in	2004		39.9		in	1952
Month Avg Min Dew Point		36.9		30.9		38.7		-1.8		46.0		in	1998		27.6		in	1966
Month Average Dew Point		42.7		38.4		44.5		-1.8		50.0		in	1998		34.0		in	1966
Precipitation		.00		T		.11		-.11		1.48		in	2006
One Hour		.00		T						.51		in	2006
Hourly Rate		.00		.00						4.80		in	2006
Month Precipitation		2.37		1.53		1.61		+.76		6.08		in	2006		T		in	2001
Year Precipitation		14.07		17.73		17.34		-3.27		31.82		in	1983		10.18		in	1927
Snow		0.0		0.0		0.0		+0.0		0.0		in
Snow Depth		0		0								in
Month Snow		0.0		0.0		0.0		+0.0		1.7		in	1977		0.0		in
Season Snow		27.7		12.9		33.5		-5.8		84.1		in	1996		5.0		in	1998
		May 14, 2021								Record					Record
Observed Daily Data		2021		2020		Norm		Depart		Highest					Lowest
Maximum Humidity		80%		82%		90%		-10%		100%		in	2018		52%		in	1951
Minimum Humidity		28%		28%		51%		-23%		93%		in	2006		18%		in	1994
Average Humidity		54%		55%		70%		-16%		97%		in	2006		36%		in	1994
Maximum Barometer		30.20		30.32		30.08		+00.12		30.55		in	1986		29.55		in	2002
Minimum Barometer		30.13		30.11		29.86		+00.27		30.26		in	2014		29.32		in	2002
Average Barometer		30.17		30.22		29.97		+00.19		30.34		in	1951		29.44		in	2002
Average Wind		5.8		7.4		6.5		-0.7		12.3		in	1971		2.9		in	1992
Direction		SSW		SSW		SSE				NW					SW
High Wind Gust		24		31		23		+1		36		in	2017		13		in	2004
Direction		SSW		SW		SSE				NW					S
High Heat Index										80		in	1991
Wind Chill				39											34		in	1996
Maximum Water Temp		54.5		47.8		54.2		+0.3		60.1		in	2007		47.8		in	2020
Minimum Water Temp		52.7		44.2		51.2		+1.5		56.4		in	2012		44.2		in	2020
Average Water Temp		53.6		46.0		52.7		+0.9		58.2		in	2007		46.0		in	2020
Sunrise/ AM Twilight		5:25:50 AM						4:54:18 AM
Sunset / PM Twilight		7:57:23 PM						8:28:55 PM
Length Of Day		14:31:33
Special Conditions		None
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