Portsmouth Rhode Island Weather Almanac
Saturday, April 20, 2024
Cloudy, Dense Fog AM, Passing Thunderstorm 9pm then Partly Cloudy PM, Warmer
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2024
		April 20, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Temperature		58		55		57		+1		83		in	1976		38		in	1904
Minimum Temperature		43		40		41		+2		55		in	1952		21		in	1897
Average Temperature		51		48		49		+2		67		in	1976		32		in	1897
Month Avg Max Temperature		54.6		60.1		53.5		+1.1		61.2		in	1976		45.7		in	1907
Month Avg Min Temperature		40.7		42.6		38.0		+2.7		42.8		in	2002		31.5		in	1943
Month Average Temperature		47.9		51.6		46.1		+1.9		52.0		in	1945		39.3		in	1907
High Heat Index										84		in	1976
Low Wind Chill		39		32		35		+4							12		in	1897
Heating Degree Days		14		17		16		-2		33		in	1897		0		in	1976
Month Heating DD		342		273		379		-37		514		in	1907		261		in	1945
Season Heating DD		4571		4340		5060		-489		6105		in	1918		4142		in	2012
Cooling Degree Days		0		0		0		+0		2		in	1976		0		in	Many
Month Cooling DD		0		5		0		+0		13		in	1976		0		in	Many
Year Cooling DD		0		5		0		+0		13		in	1976		0		in	Many
Maximum Dew Point		53		41		44		+9		60		in	2019		22		in	1988
Minimum Dew Point		35		30		31		+4		53		in	2019		8		in	2007
Average  Dew Point		44		36		38		+6		57		in	2019		17		in	1988
Month Avg Max Dew Point		44.3		46.9		41.3		+3.1		47.1		in	2002		31.9		in	1965
Month Avg Min Dew Point		34.9		33.1		27.9		+7.0		35.8		in	2010		18.1		in	1982
Month Average Dew Point		39.6		40.0		34.6		+5.1		41.0		in	2010		26.3		in	1992
Precipitation		.36		.00		.14		+.22		1.34		in	1911
One Hour Rain		.15		.00						.36		in	1978
Half Hour Rain		.11		.00						.15		in	2009
Hourly Rain Rate		.42		.00						2.06		in	2019
Month Precipitation		3.98		1.01		2.87		+1.11		9.19		in	1983		.08		in	1966
Year Precipitation		22.82		14.51		14.46		+8.36		28.46		in	1983		6.69		in	2012
Snow		0.0		0.0		0.0		+0.0		0.6		in	1904
Snow Depth		0		0		0		+0		T		in	1904
Month Snow		0.0		0.0		0.5		-0.5		9.6		in	1996		0.0		in	2024
Season Snow		12.7		9.1		33.8		-21.1		84.1		in	1996		5.0		in	1998
		April 20, 2024								Record					Record
Observed Daily Data		2024		2023		Norm		Depart		Highest					Lowest
Maximum Humidity		99%		91%		87%		+12%		100%		in	2019		51%		in	1988
Minimum Humidity		68%		48%		47%		+21%		96%		in	2019		13%		in	2007
Average Humidity		84%		70%		67%		+16%		98%		in	2019		37%		in	1952
Maximum Barometer		30.07		30.23		30.10		-00.03		30.61		in	1990		29.48		in	1953
Minimum Barometer		29.81		30.11		29.85		-00.04		30.33		in	2014		29.00		in	1978
Average Barometer		29.94		30.17		29.98		-00.04		30.44		in	1966		29.33		in	1983
Average Wind		6.1		6.8		7.6		-1.5		16.0		in	1975		3.2		in	1965
Direction		S		WNW		S				W					NNW
High Wind Gust		29		19		26		+3		46		in	1975		15		in	1976
Direction		NW		SW		SSE				WSW					WNW
Maximum Water Temp		49.3		49.5		48.2		+1.1		54.0		in	2012		42.3		in	2020
Minimum Water Temp		46.8		47.5		45.3		+1.5		50.8		in	2012		40.5		in	2020
Average Water Temp		48.1		48.5		46.7		+1.3		52.4		in	2012		41.4		in	2020
Sunrise/ AM Twilight		5:56:42 AM						5:26:45 AM
Sunset / PM Twilight		7:31:40 PM						8:01:07 PM
Length Of Day		13:34:58
Special Conditions		Dense Fog,  Thunderstorm in Distance
Comments
Hour-by-Hour Weather For April 20, 2024
Climate Weather for April 20
Weather History For April 20
Weather Calendar
Back To Weather Stat Page
Home