Weather Averages for Portsmouth, RI

7-day Forecast / 10-day Forecast

Saturday
	High: 71°F Low: 56°F
Moderate or heavy rain shower

Latitude: 41°31'N, Longitude: 71°19'W, Elevation: 20.0 ft, Distance: 5.39 mi Portsmouth, RI Averages »

	Unit	Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average temperature over 30 years	°F	50	30	31	38	46	55	64	70	70	64	55	45	35
Average high temperature over 30 years	°F	58	37	38	45	55	64	72	78	78	72	62	52	42
Average low temperature over 30 years	°F	42	22	23	30	38	47	56	62	63	56	47	38	27
Average precipitation over 30 years	in	44.8	3.8	3.6	4.1	4.2	3.7	3.1	2.9	3.3	3.5	3.5	4.7	4.4
Heating degree days over 30 years	days	5659	1076	944	834	552	288	58	-	10	75	310	582	930
Cooling degree days over 30 years	days	464	-	-	-	-	-	49	177	184	54	-	-	-

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