Portsmouth Rhode Island Weather Almanac
Sunday, October 15, 2023
Cloudy, Light Rain early, Partly Cloudy Day to Cloudy PM, Breezy, Continued Cool
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2023
		October 15, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Temperature		59		70		62		-3		78		in	1956		44		in	2009
Minimum Temperature		49		50		48		+1		64		in	2014		32		in	1979
Average Temperature		54		60		55		-1		69		in	2014		41		in	2009
Month Avg Max Temperature		68.1		63.7		64.7		+3.4		72.5		in	1990		55.4		in	1896
Month Avg Min Temperature		51.6		50.8		50.1		+1.5		56.1		in	2017		39.7		in	1981
Month Average Temperature		60.1		57.5		57.6		+2.5		64.3		in	1990		49.6		in	1981
High Heat Index										78		in	1956
Low Wind Chill		44													31		in	1979
Heating Degree Days		11		5		10		+1		24		in	2009		0		in	Many
Month Heating DD		86		114		111		-25		231		in	1981		35		in	1990
Season Heating DD		147		114		111		+36		402		in	1956		65		in	2021
Cooling Degree Days		0		0		0		-0		4		in	2014		0		in	Many
Month Cooling DD		13		1		6		+7		48		in	1954		0		in	2016
Year Cooling DD		721		771		609		+112		868		in	2020		290		in	1902
Maximum Dew Point		49		54		53		-4		69		in	2014		37		in	1983
Minimum Dew Point		42		48		41		+1		63		in	2014		23		in	1996
Average  Dew Point		46		51		47		-1		66		in	2014		31		in	1996
Month Avg Max Dew Point		58.7		55.7		56.2		+2.5		62.9		in	2018		43.3		in	1981
Month Avg Min Dew Point		49.1		47.2		44.3		+4.9		54.0		in	2005		32.3		in	1981
Month Average Dew Point		54.2		51.7		50.2		+4.0		58.4		in	2005		37.8		in	1981
Precipitation		.01		.00		.14		-.13		3.15		in	2005
One Hour Rain		.01		.00						.92		in	2005
Half Hour Rain		.01		.00						.52		in	2005
Hourly Rain Rate		.00		.00						4.88		in	2004
Month Precipitation		.42		3.64		2.10		-1.68		8.11		in	2005		.00		in	1914
Year Precipitation		42.52		33.45		35.18		+7.34		51.27		in	1998		18.73		in	1957
Snow
Snow Depth
Month Snow						0.0				0.7		in	1979		0.0	in	in
Season Snow						0.0				0.7		in	1979		0.0		in
		October 15, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Humidity		99%		99%		91%		+8%		100%		in	2018		56%		in	1973
Minimum Humidity		60%		48%		56%		+4%		92%		in	1955		27%		in	1996
Average Humidity		80%		74%		73%		+6%		96%		in	2017		46%		in	1996
Maximum Barometer		29.57		30.04		30.10		-00.53		30.46		in	2016		29.57		in	2023
Minimum Barometer		29.40		29.96		29.86		-00.46		30.41		in	2016		29.09		in	2003
Average Barometer		29.49		30.00		29.98		-00.49		30.44		in	2016		29.40		in	2003
Average Wind		9.5		3.3		7.0		+2.5		20.5		in	1955		1.6		in	1959
Direction		N		NW		SW				ENE					N
High Wind Gust		24		11		24		+0		55		in	1954		9		in	1997
Direction		N		WSW		WSW				ESE					N
Maximum Water Temp		62.6		63.9		62.4		+0.2		67.5		in	2021		58.7		in	2009
Minimum Water Temp		61.2		62.8		60.8		+0.4		66.4		in	2021		54.9		in	2009
Average Water Temp		61.9		63.4		61.6		+0.3		67.0		in	2021		56.8		in	2009
Sunrise/ AM Twilight		6:56:49 AM						6:29:51 AM
Sunset / PM Twilight		6:04:14 PM						6:32:00 PM
Length Of Day		11:06:45
Special Conditions		None
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