Portsmouth Rhode Island Weather Almanac
Thursday, April 20, 2023
Mostly Cloudy early then Partly Cloudy and Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2023
		April 20, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Temperature		55		57		57		-2		83		in	1976		38		in	1904
Minimum Temperature		40		40		41		-1		55		in	1952		21		in	1897
Average Temperature		48		49		49		-1		67		in	1976		32		in	1897
Month Avg Max Temperature		60.1		56.8		53.5		+6.6		61.2		in	1976		45.7		in	1907
Month Avg Min Temperature		42.6		40.9		38.0		+4.6		42.8		in	2002		31.5		in	1943
Month Average Temperature		51.6		49.0		46.1		+5.6		52.0		in	1945		39.3		in	1907
High Heat Index										84		in	1976
Low Wind Chill		35		34		35		+0							12		in	1897
Heating Degree Days		17		16		16		+1		33		in	1897		0		in	1976
Month HDD		273		320		379		-106		514		in	1907		261		in	1945
Season HDD		4340		4620		5029		-689		6105		in	1918		4142		in	2012
Cooling Degree Days		0		0		0		+0		2		in	1976				in
Month CDD		5		0		0		+5		13		in	1976				in
Year CDD		5		0		0		+5		13		in	1976				in
Maximum Dew Point		41		35		44		-3		60		in	2019		22		in	1988
Minimum Dew Point		30		26		31		-1		53		in	2019		8		in	2007
Average  Dew Point		36		31		38		-2		57		in	2019		17		in	1988
Month Avg Max Dew Point		46.9		44.4		41.3		+5.7		47.1		in	2002		31.9		in	1965
Month Avg Min Dew Point		33.1		30.8		27.9		+5.2		35.8		in	2010		18.1		in	1982
Month Average Dew Point		40.0		37.6		34.6		+5.5		41.0		in	2010		26.3		in	1992
Precipitation		.00		.00		.14		-.14		1.34		in	1911
One Hour		.00		.00						.36		in	1978
Hourly Rate		.00		.00						2.06		in	2019
Month Precipitation		1.01		3.27		2.87		-1.86		9.19		in	1983		.08		in	1966
Year Precipitation		14.51		16.17		14.33		+.18		28.46		in	1983		6.69		in	2012
Snow		0.0		0.0		0.0		+0.0		0.6		in	1904				in
Snow Depth		0		0						T		in	1904				in
Month Snow		0.0		0.0		0.5		-0.5		9.6		in	1996		0.0		in	2023
Season Snow		9.1		34.2		33.5		-24.4		84.1		in	1996		5.0		in	1998
		April 20, 2023								Record					Record
Observed Daily Data		2023		2022		Norm		Depart		Highest					Lowest
Maximum Humidity		91%		66%		87%		+4%		100%		in	2019		51%		in	1988
Minimum Humidity		48%		32%		47%		+1%		96%		in	2019		13%		in	2007
Average Humidity		70%		49%		67%		+2%		98%		in	2019		37%		in	1952
Maximum Barometer		30.23		30.48		30.11		+00.12		30.61		in	1990		29.48		in	1953
Minimum Barometer		30.11		29.93		29.85		+00.26		30.33		in	2014		29.00		in	1978
Average Barometer		30.17		30.21		29.98		+00.19		30.44		in	1966		29.33		in	1983
Average Wind		6.8		8.7		7.7		-0.9		16.0		in	1975		3.2		in	1965
Direction		WNW		NW		S				W					NNW
High Wind Gust		19		30		26		-7		46		in	1975		15		in	1976
Direction		SW		NW		SSE				WSW					WNW
Maximum Water Temp		49.5		49.1		48.1		+1.4		54.0		in	2012		42.3		in	2020
Minimum Water Temp		47.5		46.6		45.2		+2.3		50.8		in	2012		40.5		in	2020
Average Water Temp		48.5		47.9		46.7		+1.8		52.4		in	2012		41.4		in	2020
Sunrise/ AM Twilight		5:57:51 AM						5:26:45 AM
Sunset / PM Twilight		7:30:51 PM						8:01:24 PM
Length Of Day		13:33:00
Special Conditions		None
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