Portsmouth Rhode Island Weather Almanac
Tuesday, May 17, 2022
Partly Cloudy to Clear PM, Breezy, Continued Warm
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2022
		May 17, 2022								Record					Record
Observed Daily Data		2022		2021		Norm		Depart		Highest					Lowest
Maximum Temperature		70		74		65		+5		81		in	2015		49		in	1994
Minimum Temperature		54		50		49		+5		57		in	2017		35		in	1956
Average Temperature		62		62		57		+5		68		in	1977		46		in	1956
Month Avg Max Temperature		63.6		65.2		62.6		+1.0		69.9		in	1993		53.4		in	1917
Month Avg Min Temperature		48.1		46.3		46.5		+1.6		50.3		in	1930		40.2		in	1967
Month Average Temperature		56.2		56.1		54.6		+1.6		60.4		in	1930		47.2		in	1917
High Heat Index										82		in	2015
Low Wind Chill															32		in	1956
Heating Degree Days		3		3		8		-5		19		in	1956		0		in	2017
Month HDD		153		152		177		-24		303		in	1917		89		in	1993
Season HDD		4935		4961		5350		-415		6426		in	1905		4445		in	2012
Cooling Degree Days		0		0		0		+0		3		in	1977				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		56		52		54		+2		65		in	2015		36		in	1967
Minimum Dew Point		42		44		42		+0		53		in	1988		23		in	1956
Average  Dew Point		49		48		48		+1		58		in	2015		31		in	1967
Month Avg Max Dew Point		51.7		48.5		50.8		+0.9		56.1		in	2004		40.5		in	1966
Month Avg Min Dew Point		40.4		37.5		39.3		+1.1		45.9		in	1953		28.2		in	1966
Month Average Dew Point		46.4		43.2		45.1		+1.3		50.3		in	2018		34.4		in	1966
Precipitation		.00		.00		.10		-.10		1.65		in	1916
One Hour		.00		.00						.41		in	1976
Hourly Rate		.00		.00						3.53		in	2014
Month Precipitation		1.45		2.38		1.91		-.46		6.51		in	2006		.02		in	2015
Year Precipitation		17.85		14.08		17.64		+.21		33.69		in	1983		10.59		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 17, 2022								Record					Record
Observed Daily Data		2022		2021		Norm		Depart		Highest					Lowest
Maximum Humidity		98%		83%		90%		+8%		100%		in	2018		54%		in	1977
Minimum Humidity		45%		36%		53%		-8%		94%		in	1990		22%		in	1993
Average Humidity		72%		60%		71%		+0%		97%		in	1990		44%		in	1977
Maximum Barometer		29.81		30.28		30.06		-00.25		30.50		in	2004		29.49		in	2008
Minimum Barometer		29.58		30.21		29.84		-00.26		30.38		in	2003		29.09		in	1985
Average Barometer		29.70		30.25		29.95		-00.25		30.44		in	2004		29.43		in	2008
Average Wind		8.8		4.2		6.8		+2.0		12.7		in	1967		2.3		in	2018
Direction		WNW		S		SE				WSW					NE
High Wind Gust		32		24		23		+9		39		in	1954		9		in	2018
Direction		SSW		SW		SE				W					SSE
Maximum Water Temp		56.8		57.9		55.5		+1.3		58.5		in	2012		50.9		in	2020
Minimum Water Temp		53.6		53.6		52.1		+1.5		54.9		in	1998		46.4		in	2020
Average Water Temp		55.2		55.8		53.8		+1.4		56.7		in	2012		48.7		in	2020
Sunrise/ AM Twilight		5:23:51 AM						4:51:12 AM
Sunset / PM Twilight		7:59:39 PM						8:32:11 PM
Length Of Day		14:35:48
Special Conditions		Fog
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