Portsmouth Rhode Island Weather Almanac
Saturday, May 22, 2021
Mostly Cloudy early then Partly Cloudy, Light Winds and Warmer
Climate Normal Period						Climate Record Period
1991- 2020						1893 - 2021
		May 22, 2021								Record					Record
Observed Daily Data		2021		2020		Norm		Depart		Highest					Lowest
Maximum Temperature		72		73		67		+5		90		in	1992		49		in	1909
Minimum Temperature		55		50		50		+5		61		in	1911		39		in	1907
Average Temperature		64		62		59		+5		73		in	1992		47		in	1909
Month Avg Max Temperature		67.1		63.0		63.5		+3.6		69.0		in	1918		56.9		in	1917
Month Avg Min Temperature		47.6		44.2		47.2		+0.4		50.2		in	2012		41.6		in	1956
Month Average Temperature		57.6		53.9		55.4		+2.3		59.4		in	1930		49.9		in	1917
HDD		1		3		6		-5		18		in	1909		0		in	1996
Month HDD		163		244		212		-49		332		in	1917		132		in	1918
Season HDD		4972		5065		5385		-413		6478		in	1905		4467		in	2012
CDD		0		0		1		-1		8		in	1992		0		in
Month CDD		1		0		2		-1		27		in	2001		0		in	2020
Year CDD		1		0		2		-1		27		in	2001		0		in	2020
Maximum Dew Point		63		59		55		+8		68		in	1959		41		in	1967
Minimum Dew Point		53		49		44		+9		59		in	2012		30		in	1950
Average  Dew Point		58		54		50		+8		62		in	1951		36		in	1967
Month Avg Max Dew Point		50.5		48.1		51.7		-1.2		57.5		in	2004		41.9		in	1967
Month Avg Min Dew Point		39.5		34.9		40.3		-0.8		46.6		in	1953		30.1		in	1967
Month Average Dew Point		45.1		41.7		46.0		-0.9		50.7		in	1953		36.0		in	1967
Precipitation		.00		.00		.10		-.10		1.17		in	1919
One Hour		.00		.00						.22		in	2014
Hourly Rate		.00		.00						1.44		in	2014
Month Precipitation		2.38		2.15		2.41		-.03		6.96		in	2006		.25		in	1939
Year Precipitation		14.08		18.35		18.14		-4.06		34.36		in	1983		10.81		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 22, 2021								Record					Record
Observed Daily Data		2021		2020		Norm		Depart		Highest					Lowest
Maximum Humidity		95%		93%		91%		+4%		100%		in	2017		66%		in	1998
Minimum Humidity		69%		57%		53%		+16%		93%		in	2012		22%		in	1992
Average Humidity		82%		75%		72%		+10%		97%		in	1986		46%		in	1978
Maximum Barometer		30.36		30.25		30.08		+00.28		30.62		in	1936		29.65		in	2008
Minimum Barometer		29.95		30.03		29.83		+00.12		30.25		in	2002		29.36		in	1948
Average Barometer		30.16		30.14		29.95		+00.20		30.31		in	2007		29.57		in	1973
Average Wind		4.9		5.8		6.8		-1.9		15.2		in	1956		1.7		in	1994
Direction		SSW		SW		SSW				SSW					S
High Wind Gust		16		28		23		-7		52		in	1956		11		in	1999
Direction		SSE		SSW		SW				SSW					SE
High Heat Index										87		in	1992
Wind Chill															37		in	2006
Maximum Water Temp		59.5		52.2		56.5		+3.0		61.9		in	2007		52.0		in	2005
Minimum Water Temp		55.8		48.6		53.4		+2.4		57.7		in	1999		48.6		in	2020
Average Water Temp		57.7		50.4		54.9		+2.7		59.5		in	1999		50.4		in	2020
Sunrise/ AM Twilight		5:18:59 AM						4:46:38 AM
Sunset / PM Twilight		8:05:02 PM						8:37:23 PM
Length Of Day		14:46:03
Special Conditions		None
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