Portsmouth Rhode Island Weather Almanac
Friday, October 30, 2020
Cloudy, Rain changing to Snow at 915am, Foggy, Clearing Late, Breezy and Very Cold
Climate Normal Period						Climate Record Period
1981- 2010						1893 - 2020
		October 30, 2020								Record					Record
Observed Daily Data		Observed		2019		Normal		Depart		Highest					Lowest
Maximum Temperature		47		64		57		-10		72		in	1946		38		in	1925
Minimum Temperature		31		55		41		-10		60		in	1946		24		in	1962
Average Temperature		39		60		49		-10		66		in	1946		34		in	1928
Precipitation		.55		.28		.13		+.42		1.80		in	1917
One Hour		.10		.10						.76		in	2017
Snow		0.6		0.0		0.0		+0.6		0.6		in	2020
Snow Depth		0		0						T		in	2011
HDD		26		5		16		+10		31		in	1928		0		in	1946
CDD		0		0		0		+0		1		in	1946		0		in
Maximum Dew Point		45		63		46		-1		64		in	2017		21		in	1966
Minimum Dew Point		28		53		33		-5		53		in	2019		11		in	1966
Average  Dew Point		37		58		40		-3		58		in	2019		16		in	1966
Maximum Humidity		95%		98%		87%		+8%		100%		in	2017		49%		in	1965
Minimum Humidity		85%		84%		52%		+33%		91%		in	2004		21%		in	2001
Average Humidity		90%		91%		69%		+21%		96%		in	2004		38%		in	1965
Maximum Barometer		30.24		30.32		30.18		+00.06		30.77		in	1983		29.55		in	2012
Minimum Barometer		29.64		30.13		29.90		-00.26		30.44		in	1959		29.03		in	2017
Average Barometer		29.94		30.23		30.04		-00.10		30.57		in	1978		29.41		in	2012
Average Wind		9.8		7.3		7.4		+2.4		20.7		in	1991		1.7		in	1997
Direction		NE		SE		NW				NNE					SSW
High Wind Gust		33		19		24		+9		56		in	1991		11		in	1949
Direction		NNE		SE		N				NE					SSE
High Heat Index												in
Wind Chill		23													21		in	1962
Maximum Water Temp		59.4		58.2		57.2		+2.2		61.8		in	2017		53.2		in	2018
Minimum Water Temp		55.4		57.0		55.2		+0.2		60.1		in	2017		51.1		in	2000
Average Water Temp		57.4		57.6		56.2		+1.2		61.0		in	2017		51.7		in	2000
Sunrise/ AM Twilight		7:16:10 AM						6:47:32 AM
Sunset / PM Twilight		5:41:32 PM						6:10:09 PM
Length Of Day		10:25:22
Special Conditions		Fog
Comments		0.6" Snow breaks record of 0.3" in 1925
		October 30, 2020								Record					Record
Month-to-Date Summary		Observed		2019		Normal		Depart		Highest					Lowest
Avg Maximum Temperature		63.7		63.0		61.7		+2.0		68.3		in	2017		55.7		in	1896
Avg Minimum Temperature		49.5		49.0		46.1		+3.3		53.8		in	2017		40.9		in	1895
Average Temperature		56.9		56.3		53.9		+3.0		61.3		in	2017		49.5		in	1896
Total Precipitation		6.02		6.73		3.79		+2.23		10.20		in	2005		.28		in	1924
Total Snow		0.6		0.0		0.0		+0.6		0.7		in	1979		0.0		in
Total HDD		246		269		330		-84		466		in	1896		136		in	2017
Total CDD		4		8		5		-1		48		in	1954		0		in	2015
Avg Maximum Dew Point		56.5		55.7		51.4		+5.0		59.7		in	2017		43.2		in	1974
Avg Minimum Dew Point		44.5		44.5		39.5		+5.0		49.1		in	2017		30.0		in	1974
Average  Dew Point		50.7		50.4		45.5		+5.2		54.6		in	2017		36.6		in	1974
		October 30, 2020								Record					Record
Year-to-Date Summary		Observed		2019		Normal		Depart		Highest					Lowest
Total Precipitation		31.28		46.13		39.30		-8.02		52.05		in	1998		20.15		in	1957
Total Snow (since Jul 1 20)		0.6		0.0		0.0		+0.6		0.7		in	1979		0.0		in
Total HDD (since Jul 1 20)		302		312		419		-117		582		in	1956		190		in	2017
Total CDD (since Jan 1)		871		731		563		+308		871		in	2020		290		in	1902
Climate Weather for October 30
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