Portsmouth Rhode Island Weather Almanac
Friday, December 22, 2023
Clear, Light Winds, Continued Dry and Cold
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2023
		December 22, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Temperature		35		46		42		-7		59		in	2013		17		in	1989
Minimum Temperature		20		28		29		-9		53		in	2015		4		in	1989
Average Temperature		28		37		35		-7		56		in	2015		11		in	1989
Month Avg Max Temperature		47.0		43.9		44.2		+2.8		53.5		in	2015		31.8		in	1904
Month Avg Min Temperature		34.3		32.4		31.1		+3.2		41.3		in	2015		15.5		in	1989
Month Average Temperature		40.9		38.4		37.5		+3.4		47.7		in	2015		24.0		in	1989
High Heat Index										#N/A		in	#N/A
Low Wind Chill		11		24		17		-6							-16		in	1989
Heating Degree Days		37		28		30		+7		54		in	1989		9		in	2015
Month Heating DD		530		585		602		-72		903		in	1989		380		in	2015
Season Heating DD		1471		1406		1592		-121		2176		in	1904		1175		in	2015
Cooling Degree Days		0		0		0		+0				in			0		in	Many
Month Cooling DD		0		0		0		+0		3		in	2022		0		in	Many
Year Cooling DD		726		784		609		+117		871		in	2020		290		in	1902
Maximum Dew Point		18		46		34		-16		57		in	2015		-5		in	1989
Minimum Dew Point		9		27		19		-10		50		in	2015		-12		in	1989
Average  Dew Point		14		37		27		-13		54		in	2015		-9		in	1989
Month Avg Max Dew Point		39.5		37.6		35.2		+4.3		48.2		in	2015		16.7		in	1989
Month Avg Min Dew Point		28.0		24.7		20.0		+8.0		35.8		in	2015		-1.0		in	1989
Month Average Dew Point		34.0		31.4		27.6		+6.4		42.2		in	2015		7.9		in	1989
Precipitation		.00		.47		.14		-.14		1.49		in	1969
One Hour Rain		.00		.13						.48		in	1984
Half Hour Rain		.00		.11						.11		in	2022
Hourly Rain Rate		.00		.58						1.72		in	2011
Month Precipitation		4.63		4.02		3.30		+1.33		9.27		in	1936		.37		in	1998
Year Precipitation		53.68		41.83		44.73		+8.95		65.09		in	1983		27.14		in	1965
Snow		0.0		0.0		0.2		-0.2		3.3		in	1962
Snow Depth		0		0		1		-1		19		in	2009
Month Snow		0.1		1.5		4.0		-3.9		21.3		in	1981		0.0		in	2015
Season Snow		0.1		1.5		4.6		+4.6		21.3		in	1898		0.0		in	2015
		December 22, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Humidity		74%		98%		84%		-10%		100%		in	2018		52%		in	1989
Minimum Humidity		36%		78%		56%		-20%		93%		in	1990		20%		in	1988
Average Humidity		55%		88%		70%		-15%		97%		in	1990		42%		in	1971
Maximum Barometer		30.51		30.50		30.18		+00.33		30.72		in	1971		29.68		in	2012
Minimum Barometer		30.41		29.93		29.82		+00.59		30.47		in	2007		28.97		in	1969
Average Barometer		30.46		30.22		30.00		+00.46		30.56		in	1980		29.38		in	1969
Average Wind		4.2		8.8		8.4		-4.2		16.7		in	1952		1.8		in	1994
Direction		N		E		WNW				N					SSW
High Wind Gust		18		36		27		-9		49		in	2012		10		in	1994
Direction		N		ESE		WNW				NNW					SSW
Maximum Water Temp		47.5		46.2		44.7		+2.8		50.7		in	2011		40.4		in	2019
Minimum Water Temp		43.2		43.9		42.2		+1.0		49.5		in	2011		37.3		in	2019
Average Water Temp		45.4		45.1		43.5		+1.9		50.1		in	2011		38.9		in	2019
Sunrise/ AM Twilight		7:08:38 AM						6:39:06 AM
Sunset / PM Twilight		4:18:33 PM						4:48:34 PM
Length Of Day		9:09:55
Special Conditions		None
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