Portsmouth Rhode Island Weather Almanac
Friday, May 31, 2019
Mostly Cloudy, Light Rain and Fog early, Partly Cloudy Day to Mostly Cloudy & Foggy PM , Much Warmer
Climate Normal Period						Climate Record Period
1981- 2010						1893 - 2019
		May 31, 2019								Record					Record
Observed Daily Data		Observed		2018		Normal		Depart		Highest					Lowest
Maximum Temperature		78		69		70		+8		90		in	1895		57		in	1912
Minimum Temperature		55		53		52		+3		67		in	1987		37		in	1961
Average Temperature		67		61		61		+6		78		in	1929		50		in	1961
Precipitation		.03		.00		.11		-.08		4.87		in	1984
One Hour		.02		.00						.57		in	1984
Snow		0.0		0.0		0.0		+0.0		0.0		in
Snow Depth		0		0								in
HDD		0		4		4		-4		15		in	1961		0		in	2016
CDD		2		0		1		+1		13		in	1929
Maximum Dew Point		66		59		57		+9		70		in	2013		38		in	1967
Minimum Dew Point		54		53		48		+6		61		in	2016		27		in	1967
Average  Dew Point		60		56		52		+8		65		in	2016		33		in	1967
Maximum Humidity		98%		100%		92%		+6%		100%		in	2018		43%		in	1954
Minimum Humidity		60%		66%		57%		+3%		95%		in	1984		23%		in	1954
Average Humidity		79%		66%		75%		+4%		98%		in	1984		33%		in	1954
Maximum Barometer		29.84		30.15		30.02		-00.18		30.48		in	1902		29.70		in	2003
Minimum Barometer		29.63		29.96		29.80		-00.17		30.14		in	1957		29.40		in	1991
Average Barometer		29.74		30.06		29.91		-00.18		30.20		in	1957		29.62		in	1983
Average Wind		6.4		4.5		5.8		+0.6		11.0		in	1972		1.8		in	1991
Direction		SE		SSE		SE				S					SSE
High Wind Gust		20		16		21		-1		33		in	1962		13		in	2017
Direction		S		SSE		SE				SW					SSE
High Heat Index		80								95		in	1929
Wind Chill															36		in	1961
Maximum Water Temp		57.2		61.0		60.6		-3.4		66.7		in	2007		56.0		in	2003
Minimum Water Temp		52.5		57.0		56.5		-4.0		62.1		in	2012		52.0		in	2005
Average Water Temp		54.9		59.0		58.6		-3.8		63.8		in	2012		54.2		in	2003
Sunrise/ AM Twilight		5:13:53 AM						4:40:47 AM
Sunset / PM Twilight		8:12:10 PM						8:45:17 PM
Length Of Day		14:58:17
Special Conditions		Fog
Comments
		May 31, 2019								Record					Record
Month-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Avg Maximum Temperature		63.8		67.4		64.8		-1.0		71.4		in	1991		57.7		in	1917
Avg Minimum Temperature		48.2		50.8		47.9		+0.3		52.8		in	2012		42.0		in	1967
Average Temperature		56.0		59.1		56.3		-0.3		60.5		in	1991		50.5		in	1967
Total Precipitation		4.25		2.20		3.59		+.66		9.19		in	1948		.35		in	2015
Total Snow		0.0		0.0		T		+0.0		1.7		in	1977		0.0		in
Total HDD		280		187		269		+11		445		in	1967		169		in	2010
Total CDD		10		11		9		+1		46		in	1991		0		in	2008
Avg Maximum Dew Point		54.0		57.5		52.0		+2.1		58.1		in	2012		42.0		in	1967
Avg Minimum Dew Point		43.2		46.7		40.6		+2.6		49.0		in	2012		31.1		in	1967
Average  Dew Point		48.6		52.1		46.3		+2.4		53.5		in	2012		36.5		in	1967
		May 31, 2019								Record					Record
Year-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Total Precipitation		21.91		23.01		20.50		+1.41		35.75		in	1983		11.62		in	1905
Total Snow (since Jul 1 18)		21.1		45.6		31.8		-10.7		84.1		in	1996		5.0		in	1998
Total HDD (since Jul 1 18)		5490		5288		5572		-82		6528		in	1905		4475		in	2012
Total CDD (since Jan 1)		10		11		9		+1		46		in	1991		0		in	2008
Hour-by-Hour Weather For May 31, 2019
Climate Weather for May 31
Weather History For May 31
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