Harrisville weather by month
What a typical year looks like in Harrisville, Rhode Island: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at West Thompson Lake, 19 km from Harrisville; records cover 1962–2026.
The year at a glance
- Precipitation a year
- 50.1 in1272 mm
- Snow a year
- 39 in98 cm
- Last spring freeze
- May 7
- First fall freeze
- Oct 10
- Heating degree days
- 6,583
- Cooling degree days
- 505
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −4°−20° (heating, 99%) and 91°33° (cooling, 1%).
Month by month
Harrisville in January
Highs average 35°2° and lows 15°−9°, with 3.8 in96 mm of precipitation and 11 in27 cm of snow in a typical January.
- Record high
- 69°21° (2007)
- Record low
- −23°−31° (1984)
- Heating degree days
- 1243
- Cooling degree days
- 0
Harrisville in February
Highs average 38°3° and lows 17°−9°, with 3.5 in90 mm of precipitation and 12 in29 cm of snow in a typical February.
- Record high
- 72°22° (2017)
- Record low
- −21°−29° (1967)
- Heating degree days
- 1061
- Cooling degree days
- 0
Harrisville in March
Highs average 46°8° and lows 24°−4°, with 4.5 in113 mm of precipitation and 7 in18 cm of snow in a typical March.
- Record high
- 84°29° (1977)
- Record low
- −15°−26° (1967)
- Heating degree days
- 932
- Cooling degree days
- 0
Harrisville in April
Highs average 58°15° and lows 34°1°, with 4.6 in116 mm of precipitation and 1.5 in3.8 cm of snow in a typical April.
- Record high
- 94°34° (1976)
- Record low
- 2°−17° (1982)
- Heating degree days
- 565
- Cooling degree days
- 2
Harrisville in May
Highs average 69°20° and lows 45°7°, with 3.4 in87 mm of precipitation in a typical May.
- Record high
- 96°36° (1992)
- Record low
- 24°−4° (1968)
- Heating degree days
- 270
- Cooling degree days
- 17
Harrisville in June
Highs average 76°25° and lows 54°12°, with 4.5 in114 mm of precipitation in a typical June.
- Record high
- 99°37° (2021)
- Record low
- 27°−3° (1993)
- Heating degree days
- 76
- Cooling degree days
- 85
Harrisville in July
Highs average 82°28° and lows 60°16°, with 4 in102 mm of precipitation in a typical July.
- Record high
- 100°38° (1982)
- Record low
- 40°4° (1965)
- Heating degree days
- 9
- Cooling degree days
- 198
Harrisville in August
Highs average 80°27° and lows 58°15°, with 4.2 in108 mm of precipitation in a typical August.
- Record high
- 100°38° (1975)
- Record low
- 30°−1° (1965)
- Heating degree days
- 20
- Cooling degree days
- 150
Harrisville in September
Highs average 73°23° and lows 51°10°, with 3.9 in99 mm of precipitation in a typical September.
- Record high
- 97°36° (1983)
- Record low
- 25°−4° (1963)
- Heating degree days
- 140
- Cooling degree days
- 50
Harrisville in OctoberThis month
Highs average 61°16° and lows 38°4°, with 4.8 in121 mm of precipitation and 0.2 in0.5 cm of snow in a typical October.
- Record high
- 89°32° (1963)
- Record low
- 14°−10° (1966)
- Heating degree days
- 471
- Cooling degree days
- 3
Harrisville in November
Highs average 50°10° and lows 30°−1°, with 4.2 in106 mm of precipitation and 0.9 in2.3 cm of snow in a typical November.
- Record high
- 80°27° (1982)
- Record low
- −2°−19° (1989)
- Heating degree days
- 742
- Cooling degree days
- 0
Harrisville in December
Highs average 40°5° and lows 22°−6°, with 4.7 in120 mm of precipitation and 7 in17 cm of snow in a typical December.
- Record high
- 74°23° (1998)
- Record low
- −20°−29° (1980)
- Heating degree days
- 1054
- Cooling degree days
- 0