Portsmouth Rhode Island Weather Almanac
Monday, May 27, 2024
Dense Fog early then Cloudy, Heavy Rain, Thunderstorm Late, Windy, Contnued Warm
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		May 27, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		69		73		69		+0		84		in	1933		54		in	1983
Minimum Temperature		60		53		52		+8		64		in	1914		35		in	1972
Average Temperature		65		63		60		+5		74		in	1914		50		in	1974
Month Avg Max Temperature		64.6		66.1		64.3		+0.3		70.1		in	1991		56.6		in	2005
Month Avg Min Temperature		49.9		47.5		47.9		+2.0		51.6		in	2012		41.6		in	1967
Month Average Temperature		57.5		57.0		56.1		+1.4		59.4		in	2010		50.1		in	1967
High Heat Index										88		in	1914
Low Wind Chill															34		in	1972
Heating Degree Days		0		2		5		-5		15		in	1974		0		in	2024
Month Heating DD		206		219		239		-33		402		in	1967		154		in	1993
Season Heating DD		4937		4698		5443		-506		6518		in	1905		4475		in	2012
Cooling Degree Days		0		0		1		-1		9		in	1914		0		in	2024
Month Cooling DD		4		4		7		-3		27		in	2001		0		in	2013
Year Cooling DD		4		4		7		-3		27		in	2001		0		in	2013
Maximum Dew Point		66		57		57		+9		69		in	2011		38		in	1968
Minimum Dew Point		60		46		47		+13		61		in	2012		26		in	1969
Average  Dew Point		63		52		52		+11		64		in	2012		33		in	1969
Month Avg Max Dew Point		56.7		52.2		52.6		+4.1		57.4		in	2004		42.0		in	1967
Month Avg Min Dew Point		46.8		39.1		41.3		+5.5		47.6		in	2012		31.0		in	1967
Month Average Dew Point		52.0		46.0		47.0		+5.0		52.3		in	2012		36.5		in	1967
Precipitation		.34		.00		.10		+.24		1.43		in	1901
One Hour Rain		.20		.00						.55		in	1951
Half Hour Rain		.10		.00						.11		in	2010
Hourly Rain Rate		1.39		.00						1.39		in	2024
Month Precipitation		6.05		3.44		2.91		+3.14		8.33		in	1967		.35		in	2015
Year Precipitation		28.97		20.67		18.77		+10.20		35.09		in	1983		11.43		in	1905
Snow		0.0		0.0		0.0		+0.0				in
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 27, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		99%		99%		91%		+8%		100%		in	2011		54%		in	1954
Minimum Humidity		89%		42%		53%		+36%		89%		in	2024		25%		in	1980
Average Humidity		94%		71%		72%		+22%		94%		in	2024		42%		in	1954
Maximum Barometer		30.00		30.32		30.06		-00.06		30.52		in	1987		29.65		in	1961
Minimum Barometer		29.77		30.24		29.84		-00.07		30.24		in	2023		29.44		in	1961
Average Barometer		29.89		30.28		29.95		-00.06		30.35		in	1972		29.55		in	1961
Average Wind		9.5		3.8		6.1		+3.4		16.7		in	1956		1.4		in	2006
Direction		SE		SSW		SSW				SSW					S
High Wind Gust		28		18		22		+6		53		in	1956		13		in	2017
Direction		S		SSW		SSW				SSW					SW
Maximum Water Temp		59.5		63.5		59.0		+0.5		68.0		in	2007		52.7		in	2005
Minimum Water Temp		57.7		60.1		55.4		+2.3		60.1		in	2023		50.0		in	2005
Average Water Temp		58.6		61.8		57.2		+1.4		63.3		in	2007		51.4		in	2005
Sunrise/ AM Twilight		5:15:48 AM						4:42:53 AM
Sunset / PM Twilight		8:09:16 PM						8:42:13 PM
Length Of Day		14:53:28
Special Conditions		Dense Fog, Thunderstorm
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