Portsmouth Rhode Island Weather Almanac
Saturday, October 31, 2020
Clear to Mostly Cloudy PM, Light Winds, Continued Very Cold
Climate Normal Period						Climate Record Period
1981- 2010						1893 - 2020
		October 31, 2020								Record					Record
Observed Daily Data		Observed		2019		Normal		Depart		Highest					Lowest
Maximum Temperature		49		68		56		-7		76		in	1946		42		in	1925
Minimum Temperature		28		61		41		-13		61		in	2019		26		in	1966
Average Temperature		39		65		49		-10		67		in	1946		36		in	1925
Precipitation		.00		.24		.14		-.14		2.76		in	1939
One Hour		.00		.09						.71		in	1989
Snow		0.0		0.0		T		+0.0		0.0		in
Snow Depth		T		0						T		in	2020
HDD		26		0		16		+10		29		in	1925		0		in	2019
CDD		0		0		0		+0		2		in	1946		0		in
Maximum Dew Point		37		65		46		-9		65		in	2019		22		in	1975
Minimum Dew Point		24		60		33		-9		60		in	2019		15		in	1975
Average  Dew Point		31		63		39		-8		63		in	2019		19		in	1975
Maximum Humidity		92%		97%		89%		+3%		100%		in	2004		59%		in	1964
Minimum Humidity		44%		91%		56%		-12%		95%		in	1993		23%		in	1950
Average Humidity		68%		94%		72%		-4%		98%		in	1993		45%		in	1952
Maximum Barometer		30.54		30.13		30.19		+00.35		30.84		in	1986		29.58		in	2012
Minimum Barometer		30.24		29.69		29.92		+00.32		30.48		in	1981		29.22		in	1973
Average Barometer		30.39		29.91		30.06		+00.33		30.64		in	1986		29.45		in	1973
Average Wind		4.2		15.4		6.9		-2.7		16.1		in	1991		2.3		in	2011
Direction		NNW		S		N				NNE					SE
High Wind Gust		16		37		24		-8		50		in	1991		11		in	1970
Direction		SSW		S		SSW				NNE					W
High Heat Index										78		in	1946
Wind Chill		24													24		in	2020
Maximum Water Temp		57.0		58.5		57.1		-0.1		60.5		in	2017		52.5		in	2018
Minimum Water Temp		54.9		57.2		55.2		-0.3		58.8		in	2012		50.5		in	2018
Average Water Temp		56.0		57.9		56.2		-0.2		59.6		in	2012		51.5		in	2018
Sunrise/ AM Twilight		7:17:22 AM						6:48:41 AM
Sunset / PM Twilight		5:40:17 PM						6:08:58 PM
Length Of Day		10:22:55
Special Conditions		None
Comments
		October 31, 2020								Record					Record
Month-to-Date Summary		Observed		2019		Normal		Depart		Highest					Lowest
Avg Maximum Temperature		63.3		63.2		61.5		+1.7		68.0		in	2017		56.1		in	1925
Avg Minimum Temperature		48.8		49.4		46.0		+2.8		53.4		in	2017		40.6		in	1895
Average Temperature		56.4		56.6		53.7		+2.6		60.9		in	2017		49.3		in	1895
Total Precipitation		6.02		6.97		3.93		+2.09		10.20		in	2005		.28		in	1924
Total Snow		0.6		0.0		T		+0.6		0.7		in	1979		0.0		in
Total HDD		272		269		346		-74		486		in	1895		151		in	2017
Total CDD		4		8		5		-1		48		in	1954		0		in	2015
Avg Maximum Dew Point		55.8		56.0		51.3		+4.6		59.1		in	2017		43.7		in	1974
Avg Minimum Dew Point		43.8		45.0		39.3		+4.5		48.5		in	2017		30.8		in	1974
Average  Dew Point		50.1		50.8		45.3		+4.8		54.1		in	2017		37.2		in	1974
		October 31, 2020								Record					Record
Year-to-Date Summary		Observed		2019		Normal		Depart		Highest					Lowest
Total Precipitation		31.28		46.37		39.44		-8.16		52.05		in	1998		20.16		in	1957
Total Snow (since Jul 1 20)		0.6		0.0		T		+0.6		0.7		in	1979		0.0		in
Total HDD (since Jul 1 20)		328		312		435		-107		591		in	1956		205		in	2017
Total CDD (since Jan 1)		871		731		563		+308		871		in	2020		290		in	1902
Hour-by-Hour Weather For October 31, 2020
Climate Weather for October 31
Weather History For October 31
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