Portsmouth Rhode Island Weather Almanac
Saturday, May 21, 2022
Cloudy, Heavy Rain/Thunderstorm early, Partly Cloudy Day To Clear PM, Hot and Humid
		Climate Normal Period								Climate Record Period
		1991 - 2020								1893 - 2022
		May 21, 2022								Record					Record
Observed Daily Data		2022		2021		Norm		Depart		Highest					Lowest
Maximum Temperature		84		69		67		+17		85		in	1921		47		in	1929
Minimum Temperature		58		50		50		+8		64		in	1903		38		in	2002
Average Temperature		71		60		58		+13		73		in	1996		45		in	1990
Month Avg Max Temperature		64.8		66.9		63.3		+1.5		69.1		in	1918		56.7		in	1966
Month Avg Min Temperature		49.0		47.2		47.0		+1.9		49.9		in	2018		41.4		in	1956
Month Average Temperature		57.1		57.3		55.2		+2.0		59.2		in	1930		49.6		in	1966
High Heat Index		92								92		in	2022
Low Wind Chill															35		in	2002
Heating Degree Days		0		5		7		-7		20		in	1990		0		in	2022
Month HDD		174		162		206		-32		324		in	1966		127		in	1918
Season HDD		4956		4971		5379		-423		6467		in	1905		4465		in	2012
Cooling Degree Days		6		0		1		+5		8		in	1996				in
Month CDD		9		1		1		+8		27		in	2001		0		in	2020
Year CDD		9		1		1		+8		27		in	2001		0		in	2020
Maximum Dew Point		75		57		55		+20		75		in	2022		32		in	1967
Minimum Dew Point		58		47		44		+14		58		in	2022		25		in	1967
Average  Dew Point		67		52		50		+17		67		in	2022		29		in	1967
Month Avg Max Dew Point		52.9		49.9		51.5		+1.4		57.2		in	2004		42.0		in	1967
Month Avg Min Dew Point		41.5		38.9		40.1		+1.4		46.7		in	1953		30.0		in	1967
Month Average Dew Point		47.5		44.5		45.8		+1.7		50.7		in	1953		36.0		in	1967
Precipitation		.41		.00		.10		+.31		1.10		in	1986
One Hour		.40		.00						.48		in	1986
Hourly Rate		1.81		.00						1.81		in	2022
Month Precipitation		2.17		2.38		2.31		-.14		6.96		in	2006		.09		in	2001
Year Precipitation		18.57		14.08		18.04		+.53		34.08		in	1983		10.81		in	1927
Snow		0.0		0.0		0.0		+0.0		0.0		in					in
Snow Depth		0		0								in					in
Month Snow		0.0		0.0		0.0		+0.0		1.7		in	1977				in
Season Snow		34.7		31.1		33.5		+1.2		84.1		in	1996		5.0		in	1998
		May 21, 2022								Record					Record
Observed Daily Data		2022		2021		Norm		Depart		Highest					Lowest
Maximum Humidity		99%		97%		91%		+8%		100%		in	2013		60%		in	1967
Minimum Humidity		73%		57%		53%		+20%		96%		in	1954		14%		in	1992
Average Humidity		86%		77%		72%		+14%		98%		in	1954		45%		in	1967
Maximum Barometer		30.05		30.53		30.07		-00.02		30.53		in	2021		29.53		in	2008
Minimum Barometer		29.96		30.36		29.85		+00.11		30.36		in	2021		29.12		in	1973
Average Barometer		30.01		30.45		29.96		+00.05		30.45		in	2021		29.40		in	1973
Average Wind		5.5		5.0		6.3		-0.8		16.3		in	1985		2.1		in	1994
Direction		SSW		SSW		SSW				SSW					N
High Wind Gust		17		20		22		-5		37		in	1956		12		in	2016
Direction		SSW		S		SW				NW					SSW
Maximum Water Temp		58.1		60.4		56.9		+1.2		60.6		in	2013		51.0		in	2020
Minimum Water Temp		54.9		57.4		53.3		+1.6		57.9		in	1998		47.3		in	2020
Average Water Temp		56.5		58.9		55.1		+1.4		59.1		in	1998		49.2		in	2020
Sunrise/ AM Twilight		5:20:23 AM						4:47:29 AM
Sunset / PM Twilight		8:03:29 PM						8:36:23 PM
Length Of Day		14:43:06
Special Conditions		Dense Fog, Thunderstorm
Comments		Record High Dew Points and Heat Index
Hour-by-Hour Weather For May 21, 2022
Climate Weather for May 21
Weather History For May 21
Weather Calendar
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