Portsmouth Rhode Island Weather Almanac
Monday, December 9, 2019
Cloudy, Heavy Rain and Fog, Very Windy and Much Warmer
Climate Normal Period						Climate Record Period
1981- 2010						1893 - 2019
		December 9, 2019								Record					Record
Observed Daily Data		Observed		2018		Normal		Depart		Highest					Lowest
Maximum Temperature		58		34		44		+14		65		in	1991		12		in	1902
Minimum Temperature		45		21		30		+15		47		in	1923		-4		in	1902
Average Temperature		52		28		37		+15		55		in	1991		4		in	1902
Precipitation		1.94		.00		.15		+1.79		1.94		in	2019
One Hour		.27		.00						.32		in	2009
Snow		0.0		0.0		0.2		-.15		2.7		in	1958
Snow Depth		0		0						13		in	1981
HDD		13		37		27		-14		61		in	1902		10		in	1991
CDD		0		0		0		+0		0		in
Maximum Dew Point		57		24		36		+21		57		in	2019		6		in	1989
Minimum Dew Point		38		16		21		+17		43		in	1966		-10		in	1968
Average  Dew Point		48		20		28		+20		48		in	2019		-1		in	1989
Maximum Humidity		96%		81%		88%		+8%		100%		in	2013		52%		in	1989
Minimum Humidity		75%		54%		57%		+18%		96%		in	2014		23%		in	1989
Average Humidity		86%		68%		73%		+13%		98%		in	2014		38%		in	1989
Maximum Barometer		30.36		30.50		30.22		+00.14		30.74		in	1936		29.43		in	1981
Minimum Barometer		29.74		30.12		29.86		-00.12		30.31		in	2007		29.18		in	2009
Average Barometer		30.05		30.31		30.04		+00.01		30.44		in	2002		29.36		in	1981
Average Wind		13.0		5.8		7.2		+5.8		13.5		in	1981		0.7		in	1997
Direction		S		WNW		WNW				NW					NNW
High Wind Gust		37		18		25		+12		62		in	2005		7		in	1997
Direction		S		NW		WNW				NNW					NW
Wind Chill		40		16		20		+20							-7		in	1976
Maximum Water Temp		43.0		44.6		47.1		-4.1		52.2		in	2011		42.2		in	2010
Minimum Water Temp		40.0		39.0		44.0		-4.0		50.1		in	2011		38.9		in	2002
Average Water Temp		41.5		41.8		45.5		-4.0		51.2		in	2011		41.0		in	2010
Sunrise/ AM Twilight		7:00:29 AM						6:29:23 AM
Sunset / PM Twilight		4:15:26 PM						4:46:33 PM
Length Of Day		9:14:57
Special Conditions		Fog
Comments
		December 9, 2019								Record					Record
Month-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Avg Maximum Temperature		42.4		42.4		45.4		-3.0		56.3		in	1998		32.8		in	1910
Avg Minimum Temperature		28.4		28.9		31.8		-3.3		43.3		in	1998		14.8		in	1989
Average Temperature		35.4		35.7		38.7		-3.2		49.8		in	1998		24.8		in	1989
Total Precipitation		2.73		1.15		1.35		+1.38		4.37		in	1996		.00		in	1988
Total Snow		4.2		T		1.7		+2.5		17.0		in	1981		0.0		in	2015
Total HDD		263		261		236		+27		360		in	1989		135		in	1998
Total CDD		0		0		0		+0		0		in			0		in
Avg Maximum Dew Point		36.6		33.4		37.4		-0.8		48.3		in	1982		19.2		in	1989
Avg Minimum Dew Point		20.6		19.6		22.6		-2.0		35.6		in	2001		-3.8		in	1989
Average  Dew Point		28.6		26.5		30.0		-1.4		41.4		in	2001		7.7		in	1989
		December 9, 2019								Record					Record
Year-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Total Precipitation		52.23		50.38		45.20		+7.03		61.79		in	1983		25.40		in	1957
Total Snow (since Jul 1 19)		4.2		4.2		2.8		+1.4		19.5		in	1898		0.0		in	2015
Total HDD (since Jul 1 19)		1253		1321		1268		-15		1646		in	1904		947		in	2011
Total CDD (since Jan 1)		731		775		563		+168		807		in	2016		290		in	1902
Hour-by-Hour Weather For December 9, 2019
Climate Weather for December 9
Weather History For December 9
Weather Calendar
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