Portsmouth Rhode Island Weather Almanac
Wednesday, March 18, 2020
Clear to Mostly Mostly Cloudy PM and Warmer
Climate Normal Period						Climate Record Period
1981- 2010						1893 - 2020
		March 18, 2020								Record					Record
Observed Daily Data		Observed		2019		Normal		Depart		Highest					Lowest
Maximum Temperature		53		44		46		+7		68		in	2011		20		in	1967
Minimum Temperature		36		25		31		+5		44		in	1936		7		in	1916
Average Temperature		45		35		38		+7		55		in	2011		15		in	1967
Precipitation		.00		.00		.17		-.17		4.26		in	1968
One Hour		.00		.00						.67		in	1968
Snow		0.0		0.0		0.2		-0.2		4.5		in	1949
Snow Depth		0		0						9		in	1896
HDD		20		30		26		-6		50		in	1967		10		in	2011
CDD		0		0		0		+0		0		in
Maximum Dew Point		38		20		35		+4		52		in	1990		-6		in	1967
Minimum Dew Point		22		10		20		+2		38		in	2012		-14		in	1967
Average  Dew Point		30		15		27		+3		43		in	1989		-10		in	1967
Maximum Humidity		79%		65%		82%		-3%		100%		in	2012		45%		in	2015
Minimum Humidity		31%		29%		45%		-14%		90%		in	1968		20%		in	1992
Average Humidity		55%		47%		63%		-8%		95%		in	1968		33%		in	1992
Maximum Barometer		30.48		30.33		30.11		+00.37		30.66		in	2000		29.19		in	1973
Minimum Barometer		30.21		30.21		29.80		+00.41		30.33		in	2000		28.91		in	1973
Average Barometer		30.35		30.27		29.95		+00.39		30.50		in	2000		29.05		in	1973
Average Wind		6.5		8.0		8.9		-2.4		19.2		in	1973		1.5		in	1996
Direction		S		WNW		WNW				W					SSE
High Wind Gust		19		25		27		-8		48		in	1928		11		in	2004
Direction		S		NW		WNW				NE					SE
Wind Chill		34		18		19		+15							-10		in	1967
Maximum Water Temp		40.6		38.8		40.4		+0.2		47.1		in	2012		35.4		in	2015
Minimum Water Temp		37.9		36.3		38.4		-0.5		44.9		in	2012		33.9		in	2015
Average Water Temp		39.3		37.6		39.4		-0.2		46.0		in	2012		34.7		in	2015
Sunrise/ AM Twilight		6:49:28 AM						6:21:56 AM
Sunset / PM Twilight		6:56:21 PM						7:23:53 PM
Length Of Day		12:06:53
Special Conditions		None
Comments
		March 18, 2020								Record					Record
Month-to-Date Summary		Observed		2019		Normal		Depart		Highest					Lowest
Avg Maximum Temperature		51.3		40.9		44.2		+7.1		51.8		in	1973		31.8		in	1916
Avg Minimum Temperature		35.0		27.3		28.8		+6.2		37.4		in	1973		19.6		in	1916
Average Temperature		43.2		34.1		36.3		+6.9		44.6		in	1973		25.7		in	1916
Total Precipitation		1.08		2.49		2.97		-1.89		8.03		in	1968		.08		in	1915
Total Snow		0.7		9.6		3.7		-3.0		20.3		in	1916		0.0		in	2011
Total HDD		389		550		511		-122		703		in	1916		362		in	1973
Total CDD		0		0		0		+0		0		in			0		in
Avg Maximum Dew Point		38.2		30.4		32.5		+5.7		41.6		in	1973		20.9		in	1960
Avg Minimum Dew Point		22.2		16.7		17.6		+4.6		29.7		in	1973		4.2		in	1980
Average  Dew Point		30.2		23.6		25.0		+5.2		35.6		in	1973		15.1		in	1950
		March 18, 2020								Record					Record
Year-to-Date Summary		Observed		2019		Normal		Depart		Highest					Lowest
Total Precipitation		6.89		11.60		10.17		-3.28		19.20		in	1979		5.30		in	1901
Total Snow (since Jul 1 18)		12.9		20.9		29.4		-16.5		75.0		in	2005		4.7		in	1998
Total HDD (since Jul 1 18)		3950		4438		4462		-512		5389		in	1905		3564		in	2016
Total CDD (since Jan 1)		0		0		0		+0		0		in			0		in
Hour-by-Hour Weather For March 18, 2020
Climate Weather for March 18
Weather History For March 18
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