Portsmouth Rhode Island Weather Almanac
Sunday, May 15, 2022
Dense Fog early, Mostly Cloudy Day to Partly Cloudy/Fog PM, Cooler
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2022
		May 15, 2022								Record					Record
Observed Daily Data		2022		2021		Norm		Depart		Highest					Lowest
Maximum Temperature		71		75		65		+6		84		in	1900		50		in	1916
Minimum Temperature		54		48		48		+6		57		in	2012		38		in	1986
Average Temperature		63		62		56		+7		68		in	1976		46		in	1947
Month Avg Max Temperature		62.9		64.0		62.3		+0.5		71.3		in	2001		52.4		in	1917
Month Avg Min Temperature		47.4		45.6		46.2		+1.2		50.4		in	1930		39.8		in	1967
Month Average Temperature		55.5		55.1		54.3		+1.2		60.5		in	1930		46.3		in	1917
High Heat Index										83		in	1900
Low Wind Chill															37		in	1985
Heating Degree Days		2		3		9		-7		19		in	1947		0		in	1976
Month HDD		146		148		161		-15		280		in	1917		79		in	1930
Season HDD		4928		4957		5334		-406		6395		in	1905		4437		in	2012
Cooling Degree Days		0		0		0		+0		3		in	1976				in
Month CDD		3		0		0		+3		27		in	2001		0		in	2021
Year CDD		3		0		0		+3		27		in	2001		0		in	2021
Maximum Dew Point		64		50		53		+11		64		in	2022		35		in	2002
Minimum Dew Point		53		38		42		+11		55		in	2014		24		in	1971
Average  Dew Point		59		44		47		+12		59		in	2022		31		in	1971
Month Avg Max Dew Point		50.7		48.3		50.5		+0.3		55.7		in	2004		40.3		in	1966
Month Avg Min Dew Point		39.5		37.0		38.9		+0.5		45.7		in	1998		27.5		in	1966
Month Average Dew Point		45.4		42.8		44.7		+0.7		49.9		in	1998		33.9		in	1966
Precipitation		.05		.00		.10		-.05		1.53		in	1938
One Hour		.04		.00						.56		in	1978
Hourly Rate		.09		.00						4.76		in	2010
Month Precipitation		1.05		2.38		1.71		-.66		6.16		in	2006		.01		in	2015
Year Precipitation		17.45		14.07		17.44		+.01		32.13		in	1983		10.56		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 15, 2022								Record					Record
Observed Daily Data		2022		2021		Norm		Depart		Highest					Lowest
Maximum Humidity		98%		74%		90%		+8%		100%		in	2018		59%		in	2000
Minimum Humidity		78%		31%		53%		+25%		94%		in	1953		25%		in	1994
Average Humidity		88%		53%		72%		+16%		96%		in	1953		46%		in	2000
Maximum Barometer		29.98		30.22		30.09		-00.11		30.53		in	1971		29.61		in	1960
Minimum Barometer		29.81		30.16		29.84		-00.03		30.32		in	1999		29.40		in	2017
Average Barometer		29.90		30.19		29.97		-00.07		30.38		in	1999		29.58		in	1960
Average Wind		6.0		4.5		6.4		-0.4		14.3		in	2002		2.2		in	1962
Direction		S		SSW		S				WNW					SSE
High Wind Gust		26		20		22		+4		40		in	2002		9		in	1998
Direction		SSW		WSW		SSE				WNW					SSE
Maximum Water Temp		55.8		55.6		54.7		+1.1		59.9		in	2007		49.5		in	2019
Minimum Water Temp		52.9		53.2		51.6		+1.3		56.6		in	2012		45.1		in	2020
Average Water Temp		54.4		54.4		53.2		+1.2		58.0		in	2007		47.5		in	2020
Sunrise/ AM Twilight		5:25:45 AM						4:53:14 AM
Sunset / PM Twilight		7:57:40 PM						8:30:01 PM
Length Of Day		14:31:55
Special Conditions		Dense Fog
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