Portsmouth Rhode Island Weather Almanac
Friday, October 18, 2024
Clear, Windy and Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		October 18, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		62		60		61		+1		77		in	1908		46		in	1939
Minimum Temperature		42		50		47		-5		63		in	1928		29		in	1978
Average Temperature		52		55		54		-2		68		in	2016		39		in	1939
Month Avg Max Temperature		65.3		66.9		64.2		+1.2		71.9		in	1990		55.6		in	1896
Month Avg Min Temperature		47.6		51.1		49.6		-2.0		55.1		in	2021		39.6		in	1981
Month Average Temperature		56.7		59.2		57.1		-0.3		63.6		in	1990		49.8		in	1981
High Heat Index										78		in	1908
Low Wind Chill		37													26		in	2009
Heating Degree Days		13		10		11		+2		26		in	1939		0		in	2016
Month Heating DD		149		117		143		+6		273		in	1981		54		in	1990
Season Heating DD		187		181		223		-36		415		in	1956		81		in	2021
Cooling Degree Days		0		0		0		+0		3		in	2016		0		in	2024
Month Cooling DD		0		13		6		-6		48		in	1954		0		in	2024
Year Cooling DD		692		721		609		+83		868		in	2020		290		in	1902
Maximum Dew Point		46		54		52		-6		67		in	2016		29		in	1972
Minimum Dew Point		38		49		40		-2		60		in	2016		19		in	2018
Average  Dew Point		42		52		46		-4		64		in	2016		26		in	2018
Month Avg Max Dew Point		53.8		57.7		55.6		-1.8		60.7		in	1990		44.1		in	1981
Month Avg Min Dew Point		42.6		48.7		43.7		-1.1		52.8		in	2021		32.2		in	1981
Month Average Dew Point		48.5		53.5		49.6		-1.1		56.9		in	2021		38.1		in	1981
Precipitation		.00		.02		.14		-.14		3.38		in	1932
One Hour Rain		.00		.02						.43		in	1990
Half Hour Rain		.00		.01						.30		in	2022
Hourly Rain Rate		.00		.00						.42		in	2009
Month Precipitation		.73		.48		2.52		-1.79		8.13		in	2005		.01		in	1963
Year Precipitation		44.51		42.58		35.73		+8.78		51.27		in	1998		18.89		in	1957
Snow												in
Snow Depth												in
Month Snow										0.7		in	1979
Season Snow										0.7		in	1979
		October 18, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		90%		98%		91%		-1%		100%		in	2016		62%		in	1958
Minimum Humidity		50%		74%		54%		-4%		94%		in	1989		29%		in	1958
Average Humidity		70%		86%		72%		-2%		96%		in	1989		46%		in	1958
Maximum Barometer		30.49		30.17		30.13		+00.36		30.63		in	1985		29.57		in	1964
Minimum Barometer		30.20		30.06		29.89		+00.31		30.40		in	2020		29.34		in	1903
Average Barometer		30.35		30.12		30.01		+00.34		30.47		in	2020		29.53		in	1964
Average Wind		9.3		1.8		7.2		+2.1		15.3		in	2009		1.8		in	2023
Direction		N		S		W				NNE					S
High Wind Gust		29		10		24		+5		43		in	1999		10		in	2023
Direction		N		SSW		SSW				NNW					SSW
Maximum Water Temp		59.9		61.7		61.2		-1.3		66.0		in	2021		56.7		in	2009
Minimum Water Temp		58.3		61.2		59.5		-1.2		63.9		in	2021		53.6		in	2009
Average Water Temp		59.1		61.5		60.4		-1.3		65.0		in	2021		55.2		in	2009
Sunrise/ AM Twilight		7:01:05 AM						6:33:08 AM
Sunset / PM Twilight		5:58:28 PM						6:27:30 PM
Length Of Day		10:57:23
Special Conditions		None
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