Cranston weather by month
What a typical year looks like in Cranston, Rhode Island: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Rhode Island T.f. Green International Airport, 7 km from Cranston; records cover 1904–2026.
The year at a glance
- Precipitation a year
- 47.5 in1208 mm
- Snow a year
- 37 in93 cm
- Last spring freeze
- Apr 11
- First fall freeze
- Oct 30
- Heating degree days
- 5,478
- Cooling degree days
- 812
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 6°−14° (heating, 99%) and 94°34° (cooling, 1%).
Month by month
Cranston in January
Highs average 38°3° and lows 22°−5°, with 4 in101 mm of precipitation and 10 in26 cm of snow in a typical January.
- Record high
- 70°21° (2020)
- Record low
- −13°−25° (1976)
- Heating degree days
- 1079
- Cooling degree days
- 0
Cranston in February
Highs average 41°5° and lows 24°−5°, with 3.4 in87 mm of precipitation and 11 in27 cm of snow in a typical February.
- Record high
- 72°22° (1981)
- Record low
- −17°−27° (1934)
- Heating degree days
- 924
- Cooling degree days
- 0
Cranston in March
Highs average 48°9° and lows 30°−1°, with 4.9 in124 mm of precipitation and 6 in16 cm of snow in a typical March.
- Record high
- 90°32° (1945)
- Record low
- 1°−17° (1948)
- Heating degree days
- 808
- Cooling degree days
- 0
Cranston in April
Highs average 59°15° and lows 40°4°, with 4.3 in109 mm of precipitation and 0.6 in1.5 cm of snow in a typical April.
- Record high
- 98°37° (1976)
- Record low
- 11°−12° (1923)
- Heating degree days
- 475
- Cooling degree days
- 3
Cranston in May
Highs average 69°21° and lows 49°10°, with 3.4 in86 mm of precipitation in a typical May.
- Record high
- 96°36° (2010)
- Record low
- 29°−2° (1956)
- Heating degree days
- 212
- Cooling degree days
- 28
Cranston in June
Highs average 78°25° and lows 59°15°, with 3.8 in97 mm of precipitation in a typical June.
- Record high
- 100°38° (2025)
- Record low
- 39°4° (1945)
- Heating degree days
- 39
- Cooling degree days
- 136
Cranston in July
Highs average 84°29° and lows 65°18°, with 2.9 in74 mm of precipitation in a typical July.
- Record high
- 102°39° (1991)
- Record low
- 48°9° (1988)
- Heating degree days
- 2
- Cooling degree days
- 293
Cranston in August
Highs average 82°28° and lows 64°18°, with 3.6 in91 mm of precipitation in a typical August.
- Record high
- 104°40° (1975)
- Record low
- 40°4° (1965)
- Heating degree days
- 3
- Cooling degree days
- 252
Cranston in September
Highs average 75°24° and lows 57°14°, with 4.2 in106 mm of precipitation in a typical September.
- Record high
- 100°38° (1983)
- Record low
- 32°0° (1951)
- Heating degree days
- 71
- Cooling degree days
- 91
Cranston in OctoberThis month
Highs average 64°18° and lows 45°7°, with 4.2 in106 mm of precipitation and 0.2 in0.5 cm of snow in a typical October.
- Record high
- 88°31° (1946)
- Record low
- 20°−7° (1976)
- Heating degree days
- 336
- Cooling degree days
- 9
Cranston in November
Highs average 53°12° and lows 36°2°, with 4.3 in108 mm of precipitation and 1 in2.5 cm of snow in a typical November.
- Record high
- 81°27° (1950)
- Record low
- 6°−14° (1989)
- Heating degree days
- 615
- Cooling degree days
- 0
Cranston in December
Highs average 43°6° and lows 28°−2°, with 4.7 in118 mm of precipitation and 8 in19 cm of snow in a typical December.
- Record high
- 77°25° (1998)
- Record low
- −12°−24° (1917)
- Heating degree days
- 914
- Cooling degree days
- 0