Portsmouth Rhode Island Weather Almanac
Friday, May 15, 2020
Cloudy, Rain and Fog early, Partly Cloudy Day to Mostly Cloudy PM, Rain Late, Warmer
Climate Normal Period						Climate Record Period
1981- 2010						1893 - 2020
		May 15, 2020								Record					Record
Observed Daily Data		Observed		2019		Normal		Depart		Highest					Lowest
Maximum Temperature		71		59		64		+7		84		in	1900		50		in	1916
Minimum Temperature		50		43		48		+2		57		in	2012		38		in	1986
Average Temperature		61		51		56		+5		68		in	1976		46		in	1947
Precipitation		.42		.03		.11		+.31		1.53		in	1938
One Hour		.15		.02						.56		in	1978
Snow		0.0		0.0		0.0		+0.0		0.0		in
Snow Depth		0		0								in
HDD		4		14		9		-5		19		in	1947		0		in	1976
CDD		0		0		0		+0		3		in	1976
Maximum Dew Point		61		47		52		+9		64		in	2004		35		in	2002
Minimum Dew Point		46		39		40		+6		55		in	2014		24		in	1971
Average  Dew Point		54		43		46		+8		59		in	2014		31		in	1971
Maximum Humidity		95%		95%		90%		+5%		100%		in	2018		59%		in	2000
Minimum Humidity		64%		48%		53%		+11%		94%		in	1953		25%		in	1994
Average Humidity		80%		72%		72%		+8%		96%		in	1953		46%		in	2000
Maximum Barometer		30.11		29.84		30.08		+00.03		30.53		in	1971		29.61		in	1960
Minimum Barometer		29.81		29.78		29.84		-00.03		30.32		in	1999		29.40		in	2017
Average Barometer		29.96		29.81		29.96		-00.00		30.38		in	1999		29.58		in	1960
Average Wind		7.4		6.3		6.4		+1.0		14.3		in	2002		2.2		in	1962
Direction		SSW		NW		S				WNW					SSE
High Wind Gust		20		18		22		-2		40		in	2002		9		in	1998
Direction		SSE		WNW		S				WNW					SSE
High Heat Index										83		in	1900
Wind Chill															37		in	1985
Maximum Water Temp		49.8		49.5		54.8		-5.0		59.9		in	2007		49.5		in	2019
Minimum Water Temp		45.1		47.3		51.8		-6.7		56.6		in	2012		45.1		in	2020
Average Water Temp		47.5		48.4		53.3		-5.9		58.0		in	2007		47.5		in	2020
Sunrise/ AM Twilight		5:24:39 AM						4:52:59 AM
Sunset / PM Twilight		7:58:37 PM						8:30:17 PM
Length Of Day		14:33:58
Special Conditions		Fog
Comments
		May 15, 2020								Record					Record
Month-to-Date Summary		Observed		2019		Normal		Depart		Highest					Lowest
Avg Maximum Temperature		61.5		58.6		62.3		-0.8		71.3		in	2001		52.4		in	1917
Avg Minimum Temperature		43.1		44.4		45.9		-2.7		50.4		in	1930		39.8		in	1967
Average Temperature		52.3		51.5		53.9		-1.6		60.3		in	1930		46.1		in	1917
Total Precipitation		1.95		3.19		1.83		+.12		6.16		in	2006		.01		in	2015
Total Snow		0.0		0.0		T		+0.0		1.7		in	1977		0.0		in
Total HDD		186		198		165		+21		280		in	1917		79		in	1930
Total CDD		0		0		0		+0		27		in	2001		0		in
Avg Maximum Dew Point		46.6		50.0		49.3		-2.7		55.7		in	2004		40.3		in	1966
Avg Minimum Dew Point		31.9		40.3		36.9		-5.0		45.7		in	1998		27.5		in	1966
Average  Dew Point		39.2		45.2		43.1		-3.9		49.9		in	1998		33.9		in	1966
		May 15, 2020								Record					Record
Year-to-Date Summary		Observed		2019		Normal		Depart		Highest					Lowest
Total Precipitation		18.15		20.85		18.87		-.72		32.13		in	1983		10.56		in	1927
Total Snow (since Jul 1 19)		12.9		21.1		31.8		-18.9		84.1		in	1996		5.0		in	1998
Total HDD (since Jul 1 19)		5007		5408		5499		-492		6395		in	1905		4437		in	2012
Total CDD (since Jan 1)		0		0		0		+0.0		27		in	2001		0		in	2020
Hour-by-Hour Weather For May 15, 2020
Climate Weather for May 15
Weather History For May 15
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