Portsmouth Rhode Island Weather Almanac
Friday, May 17, 2019
Partly Cloudy, Light Fog early then Mostly Cloudy, Afternoon Light Rain, Clearing Late, Sesonal Temps
Climate Normal Period						Climate Record Period
1981- 2010						1893 - 2019
		May 17, 2019								Record					Record
Observed Daily Data		Observed		2018		Normal		Depart		Highest					Lowest
Maximum Temperature		65		64		65		+0		81		in	2015		49		in	1994
Minimum Temperature		48		53		48		+0		57		in	2017		35		in	1956
Average Temperature		57		59		57		+0		68		in	1977		46		in	1956
Precipitation		.03		.26		.11		-.08		1.65		in	1916
One Hour		.02		.06						.41		in	1976
Snow		0.0		0.0		0.0		+0.0		0.0		in
Snow Depth		0		0								in
HDD		8		6		9		-1		19		in	1956		0		in	2017
CDD		0		0		0		+0		3		in	1977
Maximum Dew Point		55		60		52		+3		65		in	2015		36		in	1967
Minimum Dew Point		47		52		41		+6		53		in	1988		23		in	1956
Average  Dew Point		51		56		47		+5		58		in	2015		31		in	1967
Maximum Humidity		96%		100%		90%		+6%		100%		in	2018		54%		in	1977
Minimum Humidity		69%		82%		53%		+16%		94%		in	1990		22%		in	1993
Average Humidity		83%		91%		71%		+11%		97%		in	1990		44%		in	1977
Maximum Barometer		29.88		30.08		30.05		-00.17		30.50		in	2004		29.49		in	2008
Minimum Barometer		29.74		29.99		29.83		-00.09		30.38		in	2003		29.09		in	1985
Average Barometer		29.81		30.04		29.94		-00.13		30.44		in	2004		29.43		in	2008
Average Wind		6.3		2.3		6.8		-0.5		12.7		in	1967		2.3		in	2018
Direction		SSW		NE		SE				WSW					NE
High Wind Gust		20		9		23		-3		39		in	1954		9		in	2018
Direction		SSW		SSE		SE				W					SSE
High Heat Index										82		in	2015
Wind Chill															32		in	1956
Maximum Water Temp		50.9		52.0		55.6		-4.7		58.5		in	2012		50.9		in	2019
Minimum Water Temp		48.4		49.5		52.2		-3.8		54.9		in	1998		48.4		in	2019
Average Water Temp		49.7		50.8		53.9		-4.2		56.7		in	2012		49.7		in	2019
Sunrise/ AM Twilight		5:23:30 AM						4:51:42 AM
Sunset / PM Twilight		7:59:50 PM						8:31:37 PM
Length Of Day		14:36:20
Special Conditions		Light Fog
Comments
		May 17, 2019								Record					Record
Month-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Avg Maximum Temperature		59.5		65.1		62.6		-3.1		69.9		in	1993		53.4		in	1917
Avg Minimum Temperature		44.7		50.1		46.1		-1.4		50.3		in	1930		40.2		in	1967
Average Temperature		52.1		57.6		54.2		-2.1		60.1		in	1930		47.0		in	1917
Total Precipitation		3.24		.90		2.05		+1.19		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		214		122		183		+31		303		in	1917		89		in	1993
Total CDD		0		0		0		+0		27		in	2001		0		in	2019
Avg Maximum Dew Point		50.5		54.6		49.7		+0.8		56.1		in	2004		40.5		in	1966
Avg Minimum Dew Point		40.9		45.4		37.3		+3.6		45.9		in	1953		28.2		in	1966
Average  Dew Point		45.7		50.0		43.5		+2.2		50.2		in	1998		34.4		in	1966
		May 17, 2019								Record					Record
Year-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Total Precipitation		20.90		21.71		18.96		+1.94		33.69		in	1983		10.59		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)		5424		5223		5486		-62		6426		in	1905		4445		in	2012
Total CDD (since Jan 1)		0		0		0		+0		27		in	2001		0		in	2019
Hour-by-Hour Weather For May 17, 2019
Climate Weather for May 17
Weather History For May 17
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