Portsmouth Rhode Island Weather Almanac
Friday, December 13, 2019
Partly Cloudy early then Cloudy, Light Rain Late and Warmer
Climate Normal Period						Climate Record Period
1981- 2010						1893 - 2019
		December 13, 2019								Record					Record
Observed Daily Data		Observed		2018		Normal		Depart		Highest					Lowest
Maximum Temperature		49		36		43		+6		60		in	1983		17		in	1960
Minimum Temperature		25		23		29		-4		49		in	2015		6		in	1905
Average Temperature		37		30		36		+1		55		in	1983		13		in	1960
Precipitation		.04		.00		.14		-.10		2.43		in	1915
One Hour		.04		.00						.27		in	1983
Snow		0.0		0.0		0.1		-.14		5.4		in	2007
Snow Depth		3		0						9		in	1970
HDD		28		35		29		-1		52		in	1960		10		in	1983
CDD		0		0		0		+0		0		in
Maximum Dew Point		48		26		35		+13		58		in	1983		-1		in	1960
Minimum Dew Point		21		8		19		+2		45		in	1983		-16		in	1976
Average  Dew Point		35		17		27		+8		52		in	1983		-6		in	1960
Maximum Humidity		95%		85%		86%		+9%		100%		in	2007		57%		in	1989
Minimum Humidity		77%		49%		55%		+22%		90%		in	1965		27%		in	1989
Average Humidity		86%		67%		71%		+15%		95%		in	1965		42%		in	1989
Maximum Barometer		30.67		30.55		30.18		+00.49		30.82		in	1975		29.24		in	2010
Minimum Barometer		30.03		30.34		29.85		+00.18		30.53		in	1994		29.06		in	2010
Average Barometer		30.35		30.45		30.01		+00.34		30.65		in	1975		29.15		in	2010
Average Wind		7.9		7.2		8.1		-0.2		21.4		in	1976		1.7		in	1954
Direction		E		E		N				NW					NW
High Wind Gust		20		20		25		-5		62		in	1976		10		in	1954
Direction		SSE		E		N				NW					NW
Wind Chill		19		15		18		+1							-12		in	1976
Maximum Water Temp		41.9		41.0		46.4		-4.5		53.1		in	2011		41.0		in	2018
Minimum Water Temp		39.7		39.4		43.9		-4.2		50.5		in	2015		39.2		in	2013
Average Water Temp		40.8		40.2		45.1		-4.3		50.8		in	2011		40.2		in	2018
Sunrise/ AM Twilight		7:03:40 AM						6:32:26 AM
Sunset / PM Twilight		4:16:00 PM						4:47:13 PM
Length Of Day		9:12:20
Special Conditions		None
Comments
		December 13, 2019								Record					Record
Month-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Avg Maximum Temperature		43.2		41.1		44.8		-1.5		54.2		in	1953		30.8		in	1904
Avg Minimum Temperature		28.8		27.4		31.1		-2.2		41.3		in	2015		16.5		in	1989
Average Temperature		36.0		34.2		37.9		-1.9		47.6		in	2015		25.3		in	1904
Total Precipitation		3.28		1.15		1.93		+1.35		6.64		in	1936		.04		in	1911
Total Snow		8.0		T		2.5		+5.5		17.0		in	1981		0.0		in	2015
Total HDD		373		396		349		+24		513		in	1904		222		in	2015
Total CDD		0		0		0		+0		0		in			0		in
Avg Maximum Dew Point		38.2		32.0		36.7		+1.5		47.6		in	2015		19.2		in	1989
Avg Minimum Dew Point		21.8		24.2		21.7		+0.1		37.2		in	2015		-0.6		in	1989
Average  Dew Point		30.0		24.7		29.2		+0.8		42.4		in	2015		9.3		in	1989
		December 13, 2019								Record					Record
Year-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Total Precipitation		52.78		50.38		45.78		+7.00		62.96		in	1983		27.07		in	1965
Total Snow (since Jul 1 19)		8.0		4.2		3.6		+4.4		21.1		in	1898		0.0		in	2015
Total HDD (since Jul 1 19)		1363		1456		1381		-18		1825		in	1904		1017		in	2015
Total CDD (since Jan 1)		731		775		563		+168		807		in	2016		290		in	1902
Hour-by-Hour Weather For December 13, 2019
Climate Weather for December 13
Weather History For December 13
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