Portsmouth Rhode Island Weather Almanac
Wednesday, May 28, 2025
Partly Cloudy to Cloudy, Light Rain PM, Light Winds, Cooler
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2025
		May 28								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Temperature		71		76		69		+2		88		in	1991		53		in	1917
Minimum Temperature		53		61		52		+1		62		in	1991		41		in	1994
Average Temperature		62		69		61		+1		75		in	1991		49		in	1907
Month Avg Max Temperature		66.2		65.0		64.5		+1.7		70.7		in	1991		57.1		in	2005
Month Avg Min Temperature		51.2		50.3		48.1		+3.1		52.0		in	2012		41.6		in	1967
Month Average Temperature		58.9		57.9		56.3		+2.5		59.8		in	1991		50.3		in	1967
High Heat Index		0		62						92		in	1991
Low Wind Chill		0		78											38		in	1994
Heating Degree Days		3		0		4		-1		16		in	1907		0		in	2024
Month Heating DD		172		206		243		-71		413		in	1967		157		in	1918
Season Heating DD		4987		4937		5416		-429		6518		in	1905		4475		in	2012
Cooling Degree Days		0		4		1		-1		10		in	1991		0		in	All
Month Cooling DD		0		8		8		-8		32		in	1991		0		in	Many
Year Cooling DD		0		8		8		-8		32		in	1991		0		in	Many
Maximum Dew Point		52		69		58		-6		69		in	2024		42		in	1964
Minimum Dew Point		38		58		47		-9		61		in	2012		29		in	1980
Average  Dew Point		45		64		52		-7		65		in	2012		37		in	1964
Month Avg Max Dew Point		56.4		57.1		52.8		+3.7		57.6		in	2004		42.2		in	1967
Month Avg Min Dew Point		46.6		47.2		41.5		+5.1		48.0		in	2012		31.1		in	1967
Month Average Dew Point		51.8		52.4		47.1		+4.6		52.7		in	2012		36.6		in	1967
Precipitation		.11		.11		.10		+.01		2.48		in	1917
One Hour Rain		.07		.10						.42		in	1959
Half Hour Rain		.05		.05						.23		in	2022
Hourly Rain Rate		.11		.24						6.19		in	2022
Month Precipitation		7.23		6.16		3.01		+4.22		8.33		in	1967		.35		in	2015
Year Precipitation		20.03		29.08		18.74		+1.29		35.09		in	1983		11.43		in	1905
Snow		0.0		0.0		0.0		+0.0		0.0		in			0.0		in	Many
Snow Depth		0		0		0				0		in			0		in	Many
Month Snow		0.0		0.0		T				1.7		in	1977		0.0		in	Many
Season Snow		11.9		12.7		33.8		21.9		84.1		in	1996		5.0		in	1998
		May 28								Record					Record
Observed Daily Data		2025		2024		Norm		Depart		Highest					Lowest
Maximum Humidity		93%		99%		90%		+3%		100%		in	2011		58%		in	1952
Minimum Humidity		31%		68%		55%		-24%		93%		in	2004		23%		in	1980
Average Humidity		62%		84%		73%		-11%		97%		in	2004		45%		in	1952
Maximum Barometer		30.31		29.79		30.07		+00.24		30.56		in	1997		29.68		in	1951
Minimum Barometer		30.21		29.67		29.85		+00.36		30.26		in	1995		29.43		in	1986
Average Barometer		30.26		29.73		29.96		+00.30		30.37		in	1997		29.60		in	1977
Average Wind		4.8		8.6		6.0		-1.2		11.5		in	1954		1.7		in	1967
Direction		SSW		SSW		SSW				SW					N
High Wind Gust		20		28		21		-1		36		in	1954		11		in	1950
Direction		S		SSE		SSE				SW					S
Maximum Water Temp		58.3		61.9		59.3		-1.0		67.1		in	2007		54.3		in	2020
Minimum Water Temp		56.8		57.6		55.6		+1.2		62.6		in	2007		50.1		in	2008
Average Water Temp		57.6		59.8		57.5		+0.1		64.9		in	2007		52.5		in	2020
Sunrise/ AM Twilight		5:15:13 AM						4:42:14 AM
Sunset / PM Twilight		8:09:53 PM						8:43:07 PM
Length Of Day		14:54:52
Special Conditions		Fog
Comments
Hour-by-Hour Weather For May 28, 2025
Climate Weather for May 28
Weather History For May 28
Weather Calendar
Back To Weather Stat Page
Home