Portsmouth Rhode Island Weather Almanac
Friday, October 20, 2023
Mostly Cloudy to Cloudy, Light Rain PM, Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2023
		October 20, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Temperature		63		56		60		+3		77		in	1947		43		in	1974
Minimum Temperature		54		44		46		+8		62		in	1916		29		in	1974
Average Temperature		59		50		53		+6		69		in	1947		36		in	1974
Month Avg Max Temperature		66.5		63.3		63.8		+2.7		70.8		in	1990		55.3		in	1896
Month Avg Min Temperature		51.1		49.5		49.2		+1.9		54.8		in	2011		39.5		in	1981
Month Average Temperature		59.1		56.6		56.7		+2.3		62.3		in	1990		49.6		in	1981
High Heat Index										78		in	1947
Low Wind Chill				41											25		in	1974
Heating Degree Days		6		15		12		-6		29		in	1974		0		in	Many
Month Heating DD		132		170		166		-34		308		in	1981		67		in	2021
Season Heating DD		193		170		166		+27		456		in	1956		92		in	2021
Cooling Degree Days		0		0		0		-0		4		in	1947		0		in	Many
Month Cooling DD		13		1		6		+7		48		in	1954		0		in	2015
Year Cooling DD		721		771		609		+112		868		in	2020		290		in	1902
Maximum Dew Point		61		45		51		+10		67		in	2011		21		in	1974
Minimum Dew Point		52		34		39		+13		54		in	1994		13		in	1952
Average  Dew Point		57		40		45		+12		59		in	2007		19		in	1974
Month Avg Max Dew Point		57.8		55.2		55.2		+2.6		60.5		in	2007		44.2		in	1981
Month Avg Min Dew Point		48.8		45.3		43.3		+5.6		51.6		in	2021		31.5		in	1981
Month Average Dew Point		53.6		50.5		49.2		+4.4		55.9		in	2021		37.8		in	1981
Precipitation		.03		.00		.13		-.10		3.31		in	1996
One Hour Rain		.03		.00						.82		in	2012
Half Hour Rain		.03		.00						.78		in	2012
Hourly Rain Rate		.12		.00						6.86		in	2012
Month Precipitation		.51		4.14		2.79		-2.28		8.13		in	2005		.01		in	1963
Year Precipitation		42.61		33.95		35.87		+6.74		51.27		in	1998		19.78		in	1957
Snow
Snow Depth										T		in	1972
Month Snow						0.0				0.7		in	1979				in
Season Snow						0.0				0.7		in	1979				in
		October 20, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Humidity		98%		77%		90%		+8%		100%		in	2012		61%		in	1974
Minimum Humidity		89%		45%		54%		+35%		94%		in	1996		21%		in	1990
Average Humidity		94%		61%		72%		+21%		97%		in	1996		50%		in	1991
Maximum Barometer		30.05		30.05		30.13		-00.08		30.64		in	1971		29.70		in	1966
Minimum Barometer		29.49		29.91		29.86		-00.37		30.47		in	1970		29.05		in	1927
Average Barometer		29.77		29.98		29.99		-00.22		30.55		in	1970		29.49		in	2006
Average Wind		7.0		7.3		6.9		+0.1		16.2		in	1961		2.6		in	1962
Direction		SE		W		SW				N					S
High Wind Gust		19		28		25		-6		46		in	1960		12		in	1953
Direction		SE		S		SSW				SSW					SW
Maximum Water Temp		61.7		60.8		60.6		+1.1		63.9		in	2021		56.7		in	2010
Minimum Water Temp		61.0		59.0		59.0		+2.0		62.5		in	2016		55.0		in	2009
Average Water Temp		61.4		59.9		59.9		+1.5		63.0		in	2007		55.9		in	2009
Sunrise/ AM Twilight		7:02:30 AM						6:35:19 AM
Sunset / PM Twilight		5:56:36 PM						6:24:36 PM
Length Of Day		10:53:28
Special Conditions		None
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