Portsmouth Rhode Island Weather Almanac
Thursday, May 9, 2024
Partly Cloudy to Mostly Cloudy PM, Dense Fog early, Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		May 9, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		65		63		63		+2		83		in	1957		46		in	1912
Minimum Temperature		49		44		46		+3		55		in	1964		29		in	1956
Average Temperature		57		54		55		+2		69		in	1957		41		in	2020
Month Avg Max Temperature		61.9		62.6		61.3		+0.6		74.0		in	1930		50.1		in	1917
Month Avg Min Temperature		46.6		46.6		45.3		+1.2		52.4		in	1930		38.2		in	1917
Month Average Temperature		54.6		54.8		53.4		+1.1		63.4		in	1930		44.4		in	1917
High Heat Index										80		in	1957
Low Wind Chill				44											25		in	1956
Heating Degree Days		8		11		10		-2		24		in	2020		0		in	1979
Month Heating DD		94		92		104		-10		185		in	1917		26		in	1930
Season Heating DD		4825		4571		5308		-483		6344		in	1905		4400		in	2012
Cooling Degree Days		0		0		0		+0		4		in	1957		0		in	2024
Month Cooling DD		0		0		0		+0		19		in	2001		0		in	2024
Year Cooling DD		0		0		0		+0		19		in	2001		0		in	2024
Maximum Dew Point		56		45		51		+5		63		in	2000		34		in	1950
Minimum Dew Point		45		32		39		+6		53		in	2012		8		in	1962
Average  Dew Point		51		39		45		+6		57		in	2013		25		in	1962
Month Avg Max Dew Point		53.8		50.0		49.4		+4.3		57.4		in	1998		34.7		in	1952
Month Avg Min Dew Point		43.6		39.4		37.8		+5.8		49.6		in	1998		23.8		in	1974
Month Average Dew Point		49.0		45.1		43.7		+5.3		53.5		in	1998		31.3		in	1952
Precipitation		.00		.00		.11		-.11		1.72		in	2012
One Hour Rain		.00		.00						.38		in	1978
Half Hour Rain		.00		.00						.10		in	2006
Hourly Rain Rate		.00		.00						2.20		in	2013
Month Precipitation		1.48		.67		1.06		+.42		3.92		in	1954		.00		in	2015
Year Precipitation		24.40		17.90		16.92		+7.48		31.60		in	1983		9.85		in	1927
Snow		0.0		0.0		0.0		+0.0		1.7		in	1977
Snow Depth		0		0		0		+0				in
Month Snow		0.0		0.0		0.0		+0.0		1.7		in	1977		0.0		in	Many
Season Snow		12.7		9.1		33.8		-21.1		84.1		in	1996		5.0		in	1998
		May 9, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		99%		83%		89%		+10%		100%		in	2018		53%		in	1957
Minimum Humidity		57%		34%		53%		+4%		94%		in	2012		13%		in	1962
Average Humidity		78%		59%		71%		+7%		97%		in	1998		36%		in	1957
Maximum Barometer		29.83		30.10		30.04		-00.21		30.49		in	1986		29.47		in	1967
Minimum Barometer		29.62		29.87		29.78		-00.16		30.31		in	2019		29.17		in	1967
Average Barometer		29.73		29.99		29.91		-00.19		30.38		in	1996		29.32		in	1967
Average Wind		7.3		4.0		8.5		-1.2		17.0		in	2020		2.8		in	1993
Direction		N		ENE		SW				WNW					SSW
High Wind Gust		23		15		27		-4		52		in	1958		13		in	1993
Direction		N		SSE		SW				SW					SW
Maximum Water Temp		53.1		56.3		53.2		-0.1		60.6		in	2007		44.1		in	2020
Minimum Water Temp		50.5		53.8		50.1		+0.4		54.0		in	2010		42.3		in	2020
Average Water Temp		51.8		55.1		51.7		+0.1		56.8		in	2007		43.2		in	2020
Sunrise/ AM Twilight		5:31:31 AM						5:00:01 AM
Sunset / PM Twilight		7:52:05 PM						8:23:17 PM
Length Of Day		14:20:34
Special Conditions		Dense Fog
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