Portsmouth Rhode Island Weather Almanac
Friday, May 12, 2023
Clear, Partly Cloudy (Light Sprinkles Late Morning), Light Winds and Very Warm
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2023
		May 12, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Temperature		78		76		64		+14		80		in	2004		47		in	1949
Minimum Temperature		55		50		47		+8		59		in	2004		36		in	1907
Average Temperature		67		63		55		+12		70		in	2004		45		in	2010
Month Avg Max Temperature		65.1		60.2		61.8		+3.2		73.3		in	2001		51.2		in	1917
Month Avg Min Temperature		47.1		45.2		45.8		+1.3		51.0		in	1930		39.2		in	1917
Month Average Temperature		56.3		53.0		53.8		+2.5		61.6		in	1930		45.4		in	1917
High Heat Index		77		77						81		in	2004
Low Wind Chill															33		in	2020
Heating Degree Days		0		2		10		-10		20		in	2010		0		in	2023
Month HDD		106		144		134		-28		235		in	1917		53		in	1930
Season HDD		4585		4926		5307		-722		6367		in	1905		4427		in	2012
Cooling Degree Days		2		0		0		+2		5		in	2004				in
Month CDD		2		0		0		+2		27		in	2001		0		in	2022
Year CDD		7		0		0		+7		27		in	2001		0		in	2022
Maximum Dew Point		58		64		52		+6		66		in	2015		37		in	1950
Minimum Dew Point		47		49		40		+7		54		in	2004		21		in	2005
Average  Dew Point		53		57		46		+7		59		in	2015		32		in	1963
Month Avg Max Dew Point		50.8		47.0		50.0		+0.8		55.3		in	1998		39.4		in	1952
Month Avg Min Dew Point		39.7		35.4		38.3		+1.3		47.7		in	1998		27.0		in	1966
Month Average Dew Point		45.6		41.5		44.2		+1.4		51.5		in	1998		33.3		in	1966
Precipitation		T		.00		.11		+.00		1.60		in	1968
One Hour		T		.00						.44		in	1952
Hourly Rate		.00		.00						.65		in	2006
Month Precipitation		.67		.98		1.39		-.72		4.93		in	1989		T		in	2001
Year Precipitation		17.90		17.38		17.12		+.78		31.68		in	1983		10.18		in	1927
Snow		0.0		0.0		0.0		+0.0		0.0		in					in
Snow Depth		0		0						0		in					in
Month Snow		0.0		0.0		0.0		+0.0		1.7		in	1977		0.0		in	2023
Season Snow		9.1		34.7		33.5		-24.4		84.1		in	1996		5.0		in	1998
		May 12, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Humidity		77%		99%		89%		-12%		100%		in	2013		55%		in	1950
Minimum Humidity		45%		65%		52%		-7%		90%		in	2006		22%		in	2005
Average Humidity		61%		82%		70%		-9%		95%		in	2006		43%		in	1977
Maximum Barometer		30.06		30.34		30.05		+00.01		30.46		in	1990		29.58		in	2003
Minimum Barometer		29.94		30.25		29.82		+00.12		30.25		in	2022		29.41		in	1996
Average Barometer		30.00		30.30		29.93		+00.07		30.30		in	2022		29.53		in	2003
Average Wind		4.7		5.5		7.2		-2.5		18.4		in	1986		2.6		in	2009
Direction		SW		NNE		S				N					SSE
High Wind Gust		26		17		24		+2		53		in	1986		12		in	2009
Direction		SW		N		S				N					SSE
Maximum Water Temp		59.5		54.3		54.5		+5.0		59.6		in	2004		45.0		in	2020
Minimum Water Temp		55.2		50.4		50.6		+4.6		55.5		in	2013		42.8		in	2020
Average Water Temp		57.4		52.4		52.6		+4.8		57.4		in	2023		43.9		in	2020
Sunrise/ AM Twilight		5:29:04 AM						4:56:30 AM
Sunset / PM Twilight		7:54:23 PM						8:26:41 PM
Length Of Day		14:25:19
Special Conditions		None
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