Portsmouth Rhode Island Weather Almanac
Friday, May 20, 2022
Partly Cloudy & Dense Fog early to Cloudy, Light Rain Late, Light Winds and Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2022
		May 20, 2022								Record					Record
Observed Daily Data		2022		2021		Norm		Depart		Highest					Lowest
Maximum Temperature		68		71		66		+2		85		in	1996		51		in	1948
Minimum Temperature		49		49		50		-1		60		in	1903		38		in	1992
Average Temperature		59		60		58		+1		72		in	1903		47		in	1948
Month Avg Max Temperature		63.9		66.8		63.2		+0.7		69.0		in	1918		56.0		in	1966
Month Avg Min Temperature		48.5		47.1		46.9		+1.6		49.9		in	1930		41.3		in	1967
Month Average Temperature		56.5		57.2		55.1		+1.4		59.3		in	1930		49.1		in	1966
High Heat Index										88		in	1996
Low Wind Chill															37		in	1992
Heating Degree Days		6		5		7		-1		18		in	1948		0		in	2019
Month HDD		174		157		199		-25		318		in	1966		125		in	1993
Season HDD		4956		4966		5372		-416		6456		in	1905		4460		in	2012
Cooling Degree Days		0		0		0		+0		7		in	1903				in
Month CDD		3		1		0		+3		27		in	2001		0		in	2020
Year CDD		3		1		0		+3		27		in	2001		0		in	2020
Maximum Dew Point		58		55		55		+3		70		in	1996		38		in	2002
Minimum Dew Point		48		42		44		+4		57		in	2019		29		in	2002
Average  Dew Point		53		49		49		+4		61		in	2019		34		in	2002
Month Avg Max Dew Point		51.8		49.5		51.4		+0.4		56.9		in	2004		42.5		in	1967
Month Avg Min Dew Point		40.7		38.5		39.9		+0.8		46.7		in	1953		30.3		in	1967
Month Average Dew Point		46.6		44.2		45.6		+0.9		50.7		in	1953		36.4		in	1967
Precipitation		.01		.00		.10		-.09		1.15		in	1952
One Hour		.01		.00						.43		in	1984
Hourly Rate		.00		.00						2.74		in	2018
Month Precipitation		1.76		2.38		2.21		-.45		6.87		in	2006		.09		in	2001
Year Precipitation		18.16		14.08		17.94		+.22		34.03		in	1983		10.81		in	1927
Snow		0.0		0.0		0.0		+0.0		0.0		in					in
Snow Depth		0		0								in					in
Month Snow		0.0		0.0		0.0		+0.0		1.7		in	1977				in
Season Snow		34.7		31.1		33.5		+1.2		84.1		in	1996		5.0		in	1998
		May 20, 2022								Record					Record
Observed Daily Data		2022		2021		Norm		Depart		Highest					Lowest
Maximum Humidity		99%		92%		93%		+6%		100%		in	2019		68%		in	1981
Minimum Humidity		67%		39%		55%		+12%		90%		in	1972		24%		in	1981
Average Humidity		83%		66%		74%		+9%		95%		in	1969		46%		in	1981
Maximum Barometer		30.06		30.52		30.07		-00.01		30.58		in	1992		29.65		in	2008
Minimum Barometer		29.83		30.37		29.85		-00.02		30.39		in	2020		29.32		in	1968
Average Barometer		29.95		30.45		29.96		-00.01		30.45		in	2021		29.51		in	1968
Average Wind		4.8		3.7		6.6		-1.8		14.3		in	1985		1.2		in	1996
Direction		SSE		S		S				SSW					SSW
High Wind Gust		17		18		22		-5		51		in	1963		12		in	1951
Direction		S		SSE		SSW				SSW					SE
Maximum Water Temp		56.8		60.3		56.4		+0.4		61.9		in	2012		49.5		in	2020
Minimum Water Temp		53.4		56.5		53.0		+0.4		57.7		in	2012		46.2		in	2020
Average Water Temp		55.1		58.4		54.7		+0.4		59.8		in	2012		47.9		in	2020
Sunrise/ AM Twilight		5:21:13 AM						4:48:22 AM
Sunset / PM Twilight		8:02:33 PM						8:35:21 PM
Length Of Day		14:41:20
Special Conditions		Dense Fog
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