Portsmouth Rhode Island Weather Almanac
Thursday, October 12, 2023
Partly Cloudy/Dense Fog early then Clear, Very Light Winds, Mild
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2023
		October 12, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Temperature		68		72		63		+5		79		in	1954		49		in	1987
Minimum Temperature		49		50		49		+0		65		in	1990		27		in	1956
Average Temperature		59		61		56		+3		71		in	1954		41		in	1956
Month Avg Max Temperature		70.1		62.5		65.3		+4.8		72.3		in	1990		56.2		in	1896
Month Avg Min Temperature		52.5		49.8		50.6		+1.9		57.3		in	2018		41.2		in	1956
Month Average Temperature		61.6		56.3		58.2		+3.4		64.3		in	1922		50.0		in	1981
High Heat Index										81		in	1954
Low Wind Chill		49													27		in	1956
Heating Degree Days		6		4		9		-3		24		in	1956		0		in	Many
Month Heating DD		54		105		82		-28		180		in	1981		27		in	1959
Season Heating DD		115		105		82		+33		369		in	1956		61		in	1961
Cooling Degree Days		0		0		0		-0		6		in	1954		0		in	Many
Month Cooling DD		13		1		6		+7		36		in	1954		0		in	2016
Year Cooling DD		721		771		609		+112		868		in	2020		290		in	1902
Maximum Dew Point		58		58		55		+3		69		in	2018		30		in	1957
Minimum Dew Point		49		48		43		+6		65		in	1990		13		in	1963
Average  Dew Point		54		53		49		+5		67		in	1990		27		in	1957
Month Avg Max Dew Point		60.8		54.4		56.8		+4.0		65.8		in	2018		43.2		in	1974
Month Avg Min Dew Point		50.8		45.7		44.9		+5.9		54.8		in	2005		32.8		in	1956
Month Average Dew Point		56.1		50.3		50.8		+5.3		60.3		in	2018		38.4		in	1974
Precipitation		.00		.00		.14		-.14		1.61		in	2018
One Hour Rain		.00		.00						.48		in	1948
Half Hour Rain		.00		.00						.24		in	2018
Hourly Rain Rate		.00		.00						1.77		in	2006
Month Precipitation		.29		1.73		1.68		-1.39		5.83		in	1962		.00		in	1930
Year Precipitation		42.39		31.54		34.76		+7.63		50.80		in	1998		18.73		in	1957
Snow
Snow Depth
Month Snow						0.0				0.7		in	1979		0.0		in
Season Snow						0.0				0.7		in	1979		0.0		in
		October 12, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Humidity		99%		94%		91%		+8%		100%		in	2018		60%		in	1958
Minimum Humidity		52%		48%		56%		-4%		89%		in	1975		19%		in	1963
Average Humidity		76%		71%		74%		+2%		94%		in	2002		43%		in	1963
Maximum Barometer		29.92		30.25		30.15		-00.23		30.59		in	1994		29.58		in	1950
Minimum Barometer		29.83		30.13		29.91		-00.08		30.44		in	1994		29.37		in	1950
Average Barometer		29.88		30.19		30.03		-00.15		30.52		in	1994		29.48		in	1950
Average Wind		1.8		4.8		6.6		-4.8		14.3		in	2002		1.8		in	2023
Direction		SSW		W		N				NNE					SSW
High Wind Gust		14		18		22		-8		48		in	1926		9		in	2021
Direction		SSW		SSW		SW				S					NE
Maximum Water Temp		65.1		63.6		63.1		+2.0		66.9		in	2021		59.7		in	2010
Minimum Water Temp		63.9		62.1		61.3		+2.6		65.7		in	2021		57.4		in	2000
Average Water Temp		64.5		62.9		62.2		+2.3		66.3		in	2021		58.9		in	2000
Sunrise/ AM Twilight		6:53:29 AM						6:26:37 AM
Sunset / PM Twilight		6:08:59 PM						6:36:37 PM
Length Of Day		11:14:50
Special Conditions		Dense Fog
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