Portsmouth Rhode Island Weather Almanac
Sunday, October 29, 2023
Mostly Cloudy early then Cloudy, Heavy Rain and Fog PM, Much Cooler
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2023
		October 29, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Temperature		61		61		57		+4		73		in	1989		41		in	2000
Minimum Temperature		47		39		43		+4		60		in	2017		27		in	1980
Average Temperature		54		50		50		+4		65		in	1984		37		in	2000
Month Avg Max Temperature		66.4		63.4		62.2		+4.2		68.7		in	1947		55.4		in	1896
Month Avg Min Temperature		51.2		49.2		47.7		+3.4		53.8		in	2017		40.8		in	1974
Month Average Temperature		59.0		56.6		55.1		+3.9		61.4		in	2017		49.1		in	1896
High Heat Index										74		in	1984
Low Wind Chill		43		34											22		in	2011
Heating Degree Days		11		15		15		-4		28		in	2000		0		in	Many
Month Heating DD		191		249		286		-95		460		in	1896		129		in	2017
Season Heating DD		252		249		286		-34		571		in	1896		173		in	1920
Cooling Degree Days		0		0		0		+0		0		in			0		in	Many
Month Cooling DD		18		4		6		+12		48		in	1954		0		in	2015
Year Cooling DD		726		774		609		+117		871		in	2020		290		in	1902
Maximum Dew Point		49		49		48		+1		65		in	2015		19		in	1965
Minimum Dew Point		44		38		36		+8		57		in	2017		7		in	1991
Average  Dew Point		47		44		42		+5		61		in	2017		17		in	1985
Month Avg Max Dew Point		57.4		55.6		53.4		+4.0		59.5		in	2017		42.7		in	1974
Month Avg Min Dew Point		47.9		45.4		41.5		+6.4		49.4		in	2017		29.4		in	1974
Month Average Dew Point		53.0		50.7		47.4		+5.6		54.7		in	2017		36.1		in	1974
Precipitation		.79		.00		.14		+.65		1.70		in	1954
One Hour Rain		.16		.00						.79		in	2015
Half Hour Rain		.10		.00						.61		in	2015
Hourly Rain Rate		1.12		.00						5.01		in	2015
Month Precipitation		4.14		5.26		4.01		+.13		10.20		in	2005		.28		in	1924
Year Precipitation		46.24		35.07		37.09		+9.15		52.05		in	1998		20.15		in	1957
Snow										0.1		in	2011
Snow Depth
Month Snow						0.0				0.7		in	1979				in
Season Snow						0.0				0.7		in	1979				in
		October 29, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Humidity		99%		96%		87%		+12%		100%		in	2017		44%		in	1983
Minimum Humidity		62%		47%		53%		+9%		94%		in	1953		17%		in	1991
Average Humidity		81%		72%		70%		+10%		97%		in	1953		38%		in	1991
Maximum Barometer		30.19		30.50		30.14		+00.05		30.68		in	1991		29.51		in	1953
Minimum Barometer		30.05		30.34		29.85		+00.20		30.45		in	1956		29.00		in	2012
Average Barometer		30.12		30.42		29.99		+00.13		30.51		in	1956		29.34		in	2012
Average Wind		6.9		6.1		8.0		-1.1		20.4		in	1963		2.0		in	1971
Direction		ENE		N		N				NNE					NE
High Wind Gust		18		18		26		-8		57		in	2012		10		in	1989
Direction		NNW		NNE		NW				ESE					SW
Maximum Water Temp		63.2		60.1		58.1		+5.1		62.2		in	2023		53.6		in	2018
Minimum Water Temp		59.9		57.9		56.0		+3.9		61.4		in	2017		51.1		in	2000
Average Water Temp		61.6		59.0		57.1		+4.5		61.6		in	2023		53.2		in	2018
Sunrise/ AM Twilight		7:13:02 AM						6:45:23 AM
Sunset / PM Twilight		5:43:57 PM						6:12:30 PM
Length Of Day		10:30:18
Special Conditions		Fog
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