Portsmouth Rhode Island Weather Almanac
Sunday, December 1, 2019
Partly Cloudy early, Mostly Cloudy Day to Cloudy, Snow to Rain and Fog, Windy and Very Cold
Climate Normal Period						Climate Record Period
1981- 2010						1893 - 2019
		December 1, 2019								Record					Record
Observed Daily Data		Observed		2018		Normal		Depart		Highest					Lowest
Maximum Temperature		37		43		47		-10		63		in	2006		30		in	1958
Minimum Temperature		22		32		33		-11		57		in	2006		12		in	1936
Average Temperature		30		38		40		-10		60		in	2006		22		in	1936
Precipitation		.36		T		.15		+.21		1.64		in	1972
One Hour		.09		T						.46		in	1972
Snow		0.8		0.0		0.2		+.65		0.8		in	2019
Snow Depth		0		0						13		in	1898
HDD		35		27		25		+10		43		in	1936		5		in	2006
CDD		0		0		0		+0		0		in
Maximum Dew Point		33		35		39		-6		62		in	2006		10		in	1989
Minimum Dew Point		9		29		25		-16		55		in	2006		-2		in	2007
Average  Dew Point		21		32		32		-11		59		in	2006		4		in	1989
Maximum Humidity		94%		89%		82%		+12%		100%		in	2013		48%		in	1989
Minimum Humidity		48%		65%		52%		-4%		92%		in	1977		23%		in	1962
Average Humidity		71%		77%		67%		+4%		96%		in	2006		39%		in	1989
Maximum Barometer		30.04		30.23		30.18		-00.14		30.87		in	1993		29.51		in	1997
Minimum Barometer		29.64		30.09		29.82		-00.18		30.67		in	1993		29.08		in	1972
Average Barometer		29.84		30.16		30.00		-00.16		30.77		in	1993		29.34		in	1987
Average Wind		9.4		5.0		8.6		+0.8		20.4		in	1999		1.3		in	1962
Direction		N		NNW		NNW				N					WNW
High Wind Gust		26		19		27		-1		55		in	1957		10		in	1962
Direction		NE		NNW		NNW				WNW					NE
Wind Chill		13		26		23		-10							-1		in	1989
Maximum Water Temp		44.8		46.6		49.6		-4.8		54.3		in	2006		44.8		in	2019
Minimum Water Temp		42.1		42.8		47.1		-5.0		52.6		in	2006		42.1		in	2019
Average Water Temp		43.5		44.7		48.3		-4.9		53.5		in	2006		43.5		in	2019
Sunrise/ AM Twilight		6:52:58 AM						6:22:14 AM
Sunset / PM Twilight		4:16:13 PM						4:46:58 PM
Length Of Day		9:23:15
Special Conditions		Fog, Sleet
Comments
		December 1, 2019								Record					Record
Month-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Avg Maximum Temperature		37.0		43.0		47.0		-10.0		63.0		in	2006		30.0		in	1958
Avg Minimum Temperature		22.0		32.0		33.0		-11.0		57.0		in	2006		12.0		in	1936
Average Temperature		30.0		38.0		40.0		-10.0		60.0		in	2006		22.0		in	1936
Total Precipitation		.36		T		.15		+.21		1.64		in	1972		.00		in	2011
Total Snow		0.8		0.0		0.1		+0.7		0.8		in	2019		0.0		in	2018
Total HDD		35		27		25		+10		43		in	1936		5		in	2006
Total CDD		0		0		0		+0		0		in			0		in
Avg Maximum Dew Point		33.0		35.0		39.4		-6.4		62.0		in	2006		10.0		in	1989
Avg Minimum Dew Point		9.0		29.0		24.5		-15.5		55.0		in	2006		-2.0		in	2007
Average  Dew Point		21.0		32.0		32.0		-11.0		58.5		in	2006		4.0		in	1989
		December 1, 2019								Record					Record
Year-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Total Precipitation		49.86		49.23		44.00		+5.86		60.27		in	1983		24.15		in	1957
Total Snow (since Jul 1 19)		0.8		4.2		1.2		-0.4		19.5		in	1898		0.0		in	2017
Total HDD (since Jul 1 19)		1025		1087		1057		-32		1340		in	1904		793		in	2011
Total CDD (since Jan 1)		731		775		563		+168		807		in	2016		290		in	1902
Hour-by-Hour Weather For December 1, 2019
Climate Weather for December 1
Weather History For December 1
Weather Calendar
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