Portsmouth Rhode Island Weather Almanac
Saturday, May 18, 2019
Clear, Windy and Warmer
Climate Normal Period						Climate Record Period
1981- 2010						1893 - 2019
		May 18, 2019								Record					Record
Observed Daily Data		Observed		2018		Normal		Depart		Highest					Lowest
Maximum Temperature		69		60		65		+4		82		in	2017		45		in	2007
Minimum Temperature		53		44		48		+5		62		in	2017		35		in	1983
Average Temperature		61		52		57		+4		72		in	2017		44		in	2007
Precipitation		.00		.00		.11		-.11		1.93		in	2002
One Hour		.00		.00						.40		in	1970
Snow		0.0		0.0		0.0		+0.0		0.0		in
Snow Depth		0		0								in
HDD		4		13		8		-4		21		in	2007		0		in	2017
CDD		0		0		0		+0		7		in	2017
Maximum Dew Point		56		60		53		+3		67		in	2017		33		in	1981
Minimum Dew Point		41		32		41		-0		57		in	2017		25		in	1981
Average  Dew Point		49		46		47		+2		62		in	2017		29		in	1981
Maximum Humidity		93%		100%		91%		+2%		100%		in	2018		63%		in	1981
Minimum Humidity		37%		44%		57%		-20%		91%		in	2004		25%		in	1983
Average Humidity		65%		72%		74%		-9%		96%		in	2004		45%		in	1981
Maximum Barometer		30.11		30.43		30.07		+00.04		30.50		in	1983		29.48		in	2008
Minimum Barometer		29.76		30.08		29.86		-00.10		30.34		in	2003		29.05		in	1985
Average Barometer		29.94		30.26		29.97		-00.03		30.37		in	2003		29.27		in	1985
Average Wind		9.5		9.2		6.4		+3.1		14.6		in	2000		1.9		in	1995
Direction		S		NNE		S				S					SSE
High Wind Gust		19		28		22		-3		41		in	2000		11		in	1995
Direction		NW		ENE		S				SW					NW
High Heat Index										83		in	2017
Wind Chill															32		in	1981
Maximum Water Temp		51.6		52.2		55.6		-4.0		59.5		in	2017		51.6		in	2019
Minimum Water Temp		48.2		50.5		52.6		-4.4		56.6		in	2013		48.2		in	2019
Average Water Temp		49.9		51.4		54.1		-4.2		57.9		in	2013		49.9		in	2019
Sunrise/ AM Twilight		5:22:37 AM						4:50:43 AM
Sunset / PM Twilight		8:00:48 PM						8:32:42 PM
Length Of Day		14:38:11
Special Conditions		None
Comments
		May 18, 2019								Record					Record
Month-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Avg Maximum Temperature		60.1		64.8		62.7		-2.7		69.7		in	1993		54.1		in	1917
Avg Minimum Temperature		45.2		49.7		46.2		-1.1		50.2		in	1930		40.4		in	1967
Average Temperature		52.6		57.3		54.4		-1.8		59.7		in	1930		47.6		in	1917
Total Precipitation		3.24		.90		2.16		+1.08		6.51		in	2006		.02		in	2015
Total Snow		0.0		0.0		T		+0.0		1.7		in	1977		0.0		in
Total HDD		218		135		191		+27		310		in	1917		96		in	1993
Total CDD		0		0		0		+0		27		in	2001		0		in	2019
Avg Maximum Dew Point		50.8		54.9		49.8		+1.0		56.4		in	2004		41.0		in	1966
Avg Minimum Dew Point		40.9		44.6		37.6		+3.4		46.3		in	1953		28.8		in	1966
Average  Dew Point		45.9		49.8		43.7		+2.2		50.4		in	1998		34.9		in	1966
		May 18, 2019								Record					Record
Year-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Total Precipitation		20.90		21.71		19.07		+1.83		33.69		in	1983		10.69		in	1927
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)		5428		5236		5494		-66		6439		in	1905		4454		in	2012
Total CDD (since Jan 1)		0		0		0		+0		27		in	2001		0		in	2019
Hour-by-Hour Weather For May 18, 2019
Climate Weather for May 18
Weather History For May 18
Weather Calendar
Back To Weather Stat Page
Home