Portsmouth Rhode Island Weather Almanac
Saturday, December 28, 2019
Clear with Light Fog early, Partly Cloudy Day to Clear PM, Continued Very Warm
Climate Normal Period						Climate Record Period
1981- 2010						1893 - 2019
		December 28, 2019								Record					Record
Observed Daily Data		Observed		2018		Normal		Depart		Highest					Lowest
Maximum Temperature		49		54		39		+10		56		in	2011		15		in	2017
Minimum Temperature		34		34		24		+10		43		in	2008		3		in	1905
Average Temperature		42		44		32		+10		48		in	2008		12		in	2017
Precipitation		.00		1.19		.13		-.13		2.75		in	1967
One Hour		.00		.26						.41		in	1967
Snow		0.0		0.0		0.1		-.13		5.6		in	1990
Snow Depth		0		0						15		in	1947
HDD		23		21		33		-10		53		in	2017		17		in	2008
CDD		0		0		0		+0		0		in
Maximum Dew Point		41		54		31		+11		54		in	2018		2		in	2017
Minimum Dew Point		28		30		14		+14		36		in	2008		-9		in	2017
Average  Dew Point		35		42		22		+13		44		in	2008		-4		in	2017
Maximum Humidity		95%		100%		85%		+10%		100%		in	2018		46%		in	1952
Minimum Humidity		55%		76%		55%		+0%		87%		in	1959		18%		in	2003
Average Humidity		75%		88%		70%		+5%		93%		in	1961		44%		in	1991
Maximum Barometer		30.19		30.54		30.18		+00.01		30.78		in	1992		29.63		in	1976
Minimum Barometer		30.04		29.78		29.85		+00.19		30.58		in	1992		29.20		in	1969
Average Barometer		30.12		30.16		30.01		+00.10		30.68		in	1992		29.44		in	1969
Average Wind		7.1		13.8		8.0		-0.9		17.6		in	1969		2.7		in	1958
Direction		NW		SSE		WNW				NW					SSW
High Wind Gust		18		38		26		-8		53		in	1969		9		in	2003
Direction		NNW		S		WNW				NW					N
Wind Chill		29		29		15		+14							-11		in	1952
Maximum Water Temp		40.0		42.6		43.5		-3.5		50.4		in	2015		38.8		in	2010
Minimum Water Temp		37.8		39.9		41.1		-3.3		47.0		in	2015		34.9		in	2000
Average Water Temp		38.9		41.3		42.3		-3.4		48.7		in	2015		37.5		in	2017
Sunrise/ AM Twilight		7:11:03 AM						6:39:49 AM
Sunset / PM Twilight		4:23:22 PM						4:54:36 PM
Length Of Day		9:12:19
Special Conditions		Light Fog
Comments
		December 28, 2019								Record					Record
Month-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Avg Maximum Temperature		42.5		43.0		42.4		+0.1		54.8		in	2015		30.4		in	1989
Avg Minimum Temperature		28.8		30.3		28.6		+0.3		42.3		in	2015		14.1		in	1989
Average Temperature		35.7		36.6		35.5		+0.2		48.5		in	2015		22.3		in	1989
Total Precipitation		5.28		3.85		3.96		+1.32		9.28		in	1936		.56		in	1955
Total Snow		8.4		0.2		6.7		+1.7		21.7		in	1981		0.0		in	2015
Total HDD		811		788		820		-9		1191		in	1989		452		in	2015
Total CDD		0		0		0		+0		0		in			0		in
Avg Maximum Dew Point		35.8		35.4		34.4		+1.4		49.8		in	2015		15.1		in	1989
Avg Minimum Dew Point		21.4		20.8		18.9		+2.5		36.8		in	2015		-1.3		in	1989
Average  Dew Point		28.6		28.1		26.6		+2.0		43.3		in	2015		6.9		in	1989
		December 28, 2019								Record					Record
Year-to-Date Summary		Observed		2018		Normal		Depart		Highest					Lowest
Total Precipitation		54.78		53.08		47.81		+6.97		65.49		in	1983		27.66		in	1965
Total Snow (since Jul 1 19)		8.4		4.4		7.8		+0.6		22.9		in	1904		0.0		in	2015
Total HDD (since Jul 1 19)		1801		1848		1852		-51		2375		in	1904		1247		in	2015
Total CDD (since Jan 1)		731		775		563		+168		807		in	2016		290		in	1902
Hour-by-Hour Weather For December 28, 2019
Climate Weather for December 28
Weather History For December 28
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