Portsmouth Rhode Island Weather Almanac
Tuesday, December 10, 2019
Cloudy, Rainy and Fog, Breezy and Continued Very Warm
Climate Normal Period						Climate Record Period
1981- 2010						1893 - 2019
		December 10, 2019								Record					Record
Observed Daily Data		Observed		2018		Normal		Depart		Highest					Lowest
Maximum Temperature		58		39		44		+14		62		in	1946		17		in	1904
Minimum Temperature		42		26		30		+12		48		in	2015		4		in	1902
Average Temperature		50		33		37		+13		55		in	1946		14		in	1904
Precipitation		.25		.00		.15		+.10		2.78		in	1936
One Hour		.06		.00						.44		in	2012
Snow		0.0		0.0		0.2		-.15		2.9		in	1905
Snow Depth		0		0						12		in	1981
HDD		15		32		28		-13		51		in	1904		10		in	1946
CDD		0		0		0		+0		0		in
Maximum Dew Point		55		21		36		+20		59		in	2012		-6		in	1968
Minimum Dew Point		40		16		21		+20		47		in	2015		-11		in	1968
Average  Dew Point		48		19		28		+20		51		in	2015		-9		in	1968
Maximum Humidity		96%		72%		86%		+10%		100%		in	2015		47%		in	1968
Minimum Humidity		88%		45%		59%		+29%		96%		in	1966		24%		in	1968
Average Humidity		92%		59%		72%		+20%		98%		in	1966		36%		in	1968
Maximum Barometer		30.05		30.18		30.14		-00.09		30.55		in	1964		29.48		in	1981
Minimum Barometer		29.75		30.06		29.83		-00.08		30.36		in	1949		29.08		in	1903
Average Barometer		29.90		30.12		29.98		-00.08		30.46		in	1949		29.39		in	1981
Average Wind		9.3		7.7		7.5		+1.8		22.9		in	1977		0.9		in	1997
Direction		SSW		N		WNW				WNW					WNW
High Wind Gust		29		21		24		+5		49		in	1905		10		in	1997
Direction		SSW		NNW		WNW				NW					N
Wind Chill		37		19		21		+16							-9		in	1968
Maximum Water Temp		42.9		44.6		46.8		-3.9		52.8		in	2011		41.9		in	2010
Minimum Water Temp		40.8		38.5		44.2		-3.4		50.1		in	2011		37.7		in	2010
Average Water Temp		41.9		41.6		45.5		-3.6		51.5		in	2011		39.8		in	2010
Sunrise/ AM Twilight		7:01:19 AM						6:30:11 AM
Sunset / PM Twilight		4:15:31 PM						4:46:40 PM
Length Of Day		9:14:12
Special Conditions		Fog
Comments
		December 10, 2019								Record					Record
Month-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Avg Maximum Temperature		44.0		42.1		45.3		-1.3		55.6		in	1953		31.4		in	1904
Avg Minimum Temperature		29.8		28.6		31.6		-1.8		42.1		in	1998		14.9		in	1989
Average Temperature		36.9		35.4		38.5		-1.6		48.8		in	1998		24.8		in	1989
Total Precipitation		2.98		1.15		1.50		+1.48		4.50		in	1936		.00		in	1988
Total Snow		4.2		T		1.9		+2.3		17.0		in	1981		0.0		in	2015
Total HDD		278		293		264		+14		400		in	1989		160		in	1998
Total CDD		0		0		0		+0		0		in			0		in
Avg Maximum Dew Point		38.4		32.2		37.2		+1.2		47.3		in	2001		18.8		in	1989
Avg Minimum Dew Point		22.5		19.2		22.4		+0.1		35.4		in	2015		-3.3		in	1989
Average  Dew Point		30.5		25.7		29.8		+0.7		41.0		in	2001		7.8		in	1989
		December 10, 2019								Record					Record
Year-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Total Precipitation		52.48		50.38		45.35		+7.13		61.88		in	1983		26.25		in	1965
Total Snow (since Jul 1 19)		4.2		4.2		3.0		+1.2		19.5		in	1898		0.0		in	2015
Total HDD (since Jul 1 19)		1268		1353		1296		-28		1697		in	1904		971		in	2011
Total CDD (since Jan 1)		731		775		563		+168		807		in	2016		290		in	1902
Hour-by-Hour Weather For December 10, 2019
Climate Weather for December 10
Weather History For December 10
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