Portsmouth Rhode Island Weather Almanac
Tuesday, October 10, 2023
Mostly Cloudy & Rain AM, then Partly Cloudy, Light Winds and Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2023
		October 10, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Temperature		65		65		64		+1		83		in	2011		45		in	1979
Minimum Temperature		46		43		49		-3		66		in	2018		33		in	1979
Average Temperature		56		54		57		-1		73		in	1949		39		in	1979
Month Avg Max Temperature		70.5		61.2		65.7		+4.8		72.9		in	1941		56.6		in	1896
Month Avg Min Temperature		53.0		50.1		50.9		+2.1		57.3		in	1927		41.9		in	1974
Month Average Temperature		62.0		55.9		58.5		+3.5		65.0		in	1927		51.2		in	1896
High Heat Index										85		in	1949
Low Wind Chill		46		43											30		in	1979
Heating Degree Days		9		11		8		+1		26		in	1979		0		in	Many
Month Heating DD		43		92		65		-22		138		in	1896		16		in	1959
Season Heating DD		104		92		65		+39		321		in	1956		57		in	1961
Cooling Degree Days		0		0		0		-0		8		in	1949		0		in	Many
Month Cooling DD		13		1		6		+7		28		in	1927		0		in	2016
Year Cooling DD		721		771		609		+112		868		in	2020		290		in	1902
Maximum Dew Point		57		52		55		+2		71		in	2018		28		in	1972
Minimum Dew Point		42		41		43		-1		65		in	2018		19		in	1993
Average  Dew Point		50		47		49		+1		68		in	2018		26		in	1972
Month Avg Max Dew Point		61.5		54.3		57.2		+4.3		65.0		in	2018		42.4		in	1974
Month Avg Min Dew Point		51.1		45.4		45.3		+5.8		55.2		in	2005		32.0		in	1984
Month Average Dew Point		56.5		50.1		51.2		+5.3		60.0		in	2018		37.9		in	1974
Precipitation		.14		.00		.14		+.00		1.99		in	1971
One Hour Rain		.09		.00						.40		in	1971
Half Hour Rain		.08		.00						.09		in	2012
Hourly Rain Rate		.83		.00						.83		in	2023
Month Precipitation		.29		1.73		1.40		-1.11		5.83		in	1962		.00		in	1930
Year Precipitation		42.39		31.54		34.48		+7.91		50.68		in	1998		18.73		in	1957
Snow										0.7		in	1979
Snow Depth
Month Snow										0.7		in	1979
Season Snow										0.7		in	1979		0.0		in
		October 10, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Humidity		96%		96%		92%		+4%		100%		in	2018		66%		in	1980
Minimum Humidity		60%		53%		58%		+2%		97%		in	1998		29%		in	1980
Average Humidity		78%		75%		75%		+3%		99%		in	1998		48%		in	1980
Maximum Barometer		29.86		30.24		30.15		-00.29		30.76		in	1972		29.80		in	1958
Minimum Barometer		29.79		30.13		29.91		-00.12		30.35		in	1983		29.27		in	1971
Average Barometer		29.83		30.19		30.03		-00.20		30.49		in	1972		29.62		in	1971
Average Wind		3.6		4.0		6.5		-2.9		23.9		in	2019		1.1		in	1995
Direction		S		SW		SW				N					SSE
High Wind Gust		22		22		22		+0		43		in	2019		9		in	1984
Direction		S		WSW		N				N					SSW
Maximum Water Temp		64.0		62.6		63.5		+0.5		66.5		in	2017		58.5		in	2000
Minimum Water Temp		62.6		61.5		62.0		+0.6		65.5		in	2021		55.8		in	2000
Average Water Temp		63.3		62.1		62.8		+0.5		65.9		in	2021		57.2		in	2000
Sunrise/ AM Twilight		6:51:17 AM						6:24:28 AM
Sunset / PM Twilight		6:12:12 PM						6:39:47 PM
Length Of Day		11:20:15
Special Conditions		None
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