Portsmouth Rhode Island Weather Almanac
Thursday, May 4, 2023
Cloudy, early Morning Light Rain, Windy and Colder
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2023
		May 4, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Temperature		51		57		61		-10		87		in	2001		50		in	1987
Minimum Temperature		43		48		45		-2		58		in	2001		33		in	1964
Average Temperature		47		53		53		-6		73		in	2001		42		in	1911
Month Avg Max Temperature		55.3		58.3		60.5		-5.3		83.8		in	2001		51.3		in	1920
Month Avg Min Temperature		45.0		44.5		44.8		+0.3		54.5		in	2001		34.8		in	1964
Month Average Temperature		50.3		51.8		52.8		-2.5		69.5		in	2001		45.5		in	1917
High Heat Index										86		in	2001
Low Wind Chill		37													26		in	1986
Heating Degree Days		18		12		12		+6		23		in	1911		0		in	2010
Month HDD		59		53		49		+10		78		in	1917		1		in	2001
Season HDD		4538		4835		5222		-684		6309		in	1904		4348		in	2012
Cooling Degree Days		0		0		0		-0		8		in	2001				in
Month CDD		0		0		0		+0		19		in	2001		0		in	2023
Year CDD		0		0		0		+0		19		in	2001		0		in	2022
Maximum Dew Point		45		56		49		-4		62		in	2018		23		in	1986
Minimum Dew Point		40		43		37		+3		50		in	2018		15		in	1986
Average  Dew Point		43		50		43		+0		56		in	2018		19		in	1986
Month Avg Max Dew Point		49.8		48.8		48.8		+1.0		58.3		in	2010		28.3		in	1952
Month Avg Min Dew Point		41.8		40.3		36.8		+5.0		47.5		in	2010		16.8		in	1974
Month Average Dew Point		46.3		44.8		42.8		+3.5		52.9		in	2010		25.3		in	1957
Precipitation		.02		.06		.12		-.10		2.41		in	1893
One Hour		.01		.05						.42		in	1987
Hourly Rate		.00		.18						2.22		in	2021
Month Precipitation		.35		.60		.49		-.14		2.92		in	1900		.00		in	2015
Year Precipitation		17.58		17.00		16.22		+1.36		31.53		in	1983		9.77		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		T		in	1995		0.0		in	2023
Season Snow		9.1		34.7		33.5		-24.4		84.1		in	1996		5.0		in	1998
		May 4, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Humidity		95%		98%		87%		+8%		100%		in	2015		54%		in	1967
Minimum Humidity		71%		81%		49%		+22%		92%		in	2012		16%		in	1980
Average Humidity		83%		90%		68%		+15%		96%		in	2012		40%		in	1952
Maximum Barometer		30.05		30.14		30.04		+00.01		30.55		in	1990		29.61		in	1983
Minimum Barometer		29.64		29.89		29.82		-00.18		30.29		in	1993		29.12		in	1984
Average Barometer		29.85		30.02		29.93		-00.08		30.36		in	1993		29.39		in	1984
Average Wind		9.6		4.0		7.0		+2.6		15.2		in	1981		2.4		in	2009
Direction		NNE		NW		SSW				NNE					SSE
High Wind Gust		25		12		24		+1		46		in	2014		12		in	2022
Direction		ENE		S		SSE				W					S
Maximum Water Temp		54.5		49.6		51.7		+2.8		58.6		in	2007		46.4		in	2020
Minimum Water Temp		52.0		48.7		48.6		+3.4		52.3		in	1998		42.6		in	2020
Average Water Temp		53.3		49.2		50.2		+3.1		54.7		in	2007		44.5		in	2020
Sunrise/ AM Twilight		5:38:23 AM						5:06:21 AM
Sunset / PM Twilight		7:46:00 PM						8:17:31 PM
Length Of Day		14:07:37
Special Conditions		Fog
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