Portsmouth Rhode Island Weather Almanac
Thursday, October 31, 2024
Clear & Light Fog early then Partly Cloudy, Continued Very Warm
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		October 31, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		75		50		57		+18		76		in	1946		42		in	1925
Minimum Temperature		57		39		43		+14		61		in	2019		26		in	1966
Average Temperature		66		45		50		+16		67		in	1946		36		in	1925
Month Avg Max Temperature		66.0		65.6		61.9		+4.1		68.0		in	2017		56.1		in	1925
Month Avg Min Temperature		48.1		50.7		47.4		+0.6		53.4		in	2017		40.6		in	1895
Month Average Temperature		57.3		58.4		54.8		+2.5		60.9		in	2017		49.3		in	1895
High Heat Index		76								78		in	1946
Low Wind Chill				34											24		in	2020
Heating Degree Days		0		20		15		-15		29		in	1925		0		in	2024
Month Heating DD		244		222		316		-72		486		in	1895		151		in	2017
Season Heating DD		282		286		396		-114		591		in	1956		190		in	2021
Cooling Degree Days		1		0		0		+1		2		in	1946		0		in	2023
Month Cooling DD		4		18		6		-2		48		in	1954		0		in	2015
Year Cooling DD		696		726		609		+87		871		in	2020		290		in	1902
Maximum Dew Point		63		46		47		+16		65		in	2019		22		in	1975
Minimum Dew Point		56		27		35		+21		60		in	2019		15		in	1975
Average  Dew Point		60		37		41		+19		63		in	2019		19		in	1975
Month Avg Max Dew Point		53.5		57.1		53.0		+0.5		59.1		in	2017		43.7		in	1974
Month Avg Min Dew Point		42.0		47.2		41.1		+0.9		49.3		in	2021		30.8		in	1974
Month Average Dew Point		48.0		52.5		47.0		+1.0		54.1		in	2017		37.2		in	1974
Precipitation		.00		.00		.13		-.13		2.76		in	1939
One Hour Rain		.00		.00						.71		in	1989
Half Hour Rain		.00		.00						.13		in	2012
Hourly Rain Rate		.00		.00						1.24		in	2012
Month Precipitation		.83		4.82		4.28		-3.45		10.20		in	2005		.28		in	1924
Year Precipitation		44.61		46.92		37.49		+7.12		52.05		in	1998		20.16		in	1957
Snow												in
Snow Depth										T		in	2020
Month Snow										0.7		in	1979
Season Snow										0.7		in	1979
		October 31, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		96%		92%		89%		+7%		100%		in	2004		59%		in	1964
Minimum Humidity		65%		43%		57%		+8%		95%		in	1993		23%		in	1950
Average Humidity		81%		68%		73%		+8%		98%		in	1993		45%		in	1952
Maximum Barometer		30.16		30.13		30.18		-00.02		30.84		in	1986		29.58		in	2012
Minimum Barometer		29.96		29.88		29.92		+00.04		30.48		in	1981		29.22		in	1973
Average Barometer		30.06		30.01		30.05		+00.01		30.64		in	1986		29.45		in	1973
Average Wind		6.6		7.2		6.8		-0.2		16.1		in	1991		2.3		in	2011
Direction		SSW		N		N				NNE					SE
High Wind Gust		23		21		23		-0		50		in	1991		11		in	1970
Direction		#N/A		#N/A		SSW				NNE					W
Maximum Water Temp		60.6		59.9		57.6		+3.0		62.1		in	2021		52.5		in	2018
Minimum Water Temp		59.7		58.6		55.9		+3.8		61.3		in	2021		50.5		in	2018
Average Water Temp		60.2		59.3		56.7		+3.4		61.7		in	2021		51.5		in	2018
Sunrise/ AM Twilight		7:16:20 AM						6:47:39 AM
Sunset / PM Twilight		5:40:24 PM						6:10:03 PM
Length Of Day		10:24:04
Special Conditions		Fog
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