Portsmouth Rhode Island Weather Almanac
Thursday, January 18, 2024
Clear early, Partly Cloudy Day to Cloudy PM, Breezy, Dry and Continued Cold
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		January 18, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		30		53		37		-7		58		in	1990		11		in	1982
Minimum Temperature		19		37		23		-4		46		in	1915		-9		in	1982
Average Temperature		25		45		30		-5		50		in	1990		1		in	1982
Month Avg Max Temperature		40.1		39.0		38.7		+1.4		46.9		in	2007		24.7		in	1981
Month Avg Min Temperature		27.2		21.9		24.9		+2.2		33.4		in	2007		8.1		in	1981
Month Average Temperature		33.8		30.6		31.9		+1.8		40.3		in	2007		16.7		in	1981
High Heat Index										#N/A		in	#N/A
Low Wind Chill		6		34		9		-3							-31		in	1982
Heating Degree Days		40		20		35		+5		64		in	1982		15		in	1990
Month Heating DD		562		461		595		-33		870		in	1981		445		in	2007
Season Heating DD		2239		2154		2465		-226		3201		in	1981		1871		in	2016
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		24		40		29		-5		54		in	2006		-9		in	1977
Minimum Dew Point		7		30		13		-6		35		in	2017		-24		in	1982
Average  Dew Point		16		35		21		-5		41		in	1999		-15		in	1982
Month Avg Max Dew Point		33.2		39.6		31.3		+1.9		41.9		in	2007		11.8		in	1981
Month Avg Min Dew Point		19.3		28.4		15.2		+4.1		28.4		in	2023		-7.4		in	1981
Month Average Dew Point		26.6		34.2		23.3		+3.2		34.2		in	2023		2.2		in	1981
Precipitation		.00		.00		.12		-.12		2.05		in	1915
One Hour Rain		.00		.00						.47		in	1994
Half Hour Rain		.00		.00						.31		in	2006
Hourly Rain Rate		.00		.00						5.43		in	2006
Month Precipitation		4.93		2.56		2.18		+2.75		7.08		in	1979		.28		in	1984
Year Precipitation		4.93		2.56		2.18		+2.75		7.08		in	1979		.28		in	1984
Snow		0.0		0.0		0.3		-0.3		6.3		in	2009
Snow Depth		1		0		1		-0		13		in	1912
Month Snow		5.6		0.1		5.4		+0.2		25.8		in	1996		0.0		in	2007
Season Snow		5.7		1.6		12.5		-6.8		41.6		in	1996		0.2		in	1914
		January 18, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		83%		84%		84%		-1%		100%		in	2011		50%		in	1977
Minimum Humidity		55%		60%		54%		+1%		94%		in	2017		29%		in	2013
Average Humidity		69%		72%		69%		-0%		96%		in	2017		42%		in	1962
Maximum Barometer		30.16		29.91		30.14		+00.02		30.74		in	2007		29.54		in	1958
Minimum Barometer		30.03		29.60		29.77		+00.26		30.30		in	1962		29.25		in	2022
Average Barometer		30.10		29.76		29.95		+00.14		30.43		in	1974		29.42		in	1958
Average Wind		8.8		7.9		8.5		+0.3		16.6		in	2006		1.6		in	1965
Direction		W		WNW		WNW				SSE					W
High Wind Gust		25		30		27		-2		55		in	1999		12		in	1985
Direction		WSW		NW		WNW				S					NW
Maximum Water Temp		39.6		42.9		40.8		-1.2		48.2		in	2007		36.0		in	2018
Minimum Water Temp		37.9		40.6		37.8		+0.1		43.2		in	2007		33.6		in	2018
Average Water Temp		38.8		41.8		39.2		-0.5		45.7		in	2007		34.8		in	2018
Sunrise/ AM Twilight		7:08:02 AM						6:37:22 AM
Sunset / PM Twilight		4:43:20 PM						5:14:03 PM
Length Of Day		16:43:02
Special Conditions		None
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