Winslow weather by month
What a typical year looks like in Winslow, Maine: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at WATERVILLE TREATMENT PLT, 5 km from Winslow; records cover 1896–2026.
The year at a glance
- Precipitation a year
- 43.4 in1101 mm
- Snow a year
- Rare
- Last spring freeze
- May 6
- First fall freeze
- Oct 7
- Heating degree days
- 7,597
- Cooling degree days
- 394
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −11°−24° (heating, 99%) and 91°33° (cooling, 1%).
Month by month
Winslow in January
Highs average 29°−2° and lows 9°−13°, with 3.1 in79 mm of precipitation in a typical January.
- Record high
- 61°16° (1932)
- Record low
- −36°−38° (1907)
- Heating degree days
- 1437
- Cooling degree days
- 0
Winslow in February
Highs average 32°0° and lows 10°−12°, with 2.6 in66 mm of precipitation in a typical February.
- Record high
- 63°17° (2022)
- Record low
- −35°−37° (1934)
- Heating degree days
- 1236
- Cooling degree days
- 0
Winslow in March
Highs average 40°5° and lows 21°−6°, with 3.3 in83 mm of precipitation in a typical March.
- Record high
- 84°29° (2012)
- Record low
- −20°−29° (1907)
- Heating degree days
- 1073
- Cooling degree days
- 0
Winslow in April
Highs average 54°12° and lows 32°0°, with 3.7 in95 mm of precipitation in a typical April.
- Record high
- 92°33° (1990)
- Record low
- −1°−18° (1908)
- Heating degree days
- 665
- Cooling degree days
- 0
Winslow in May
Highs average 66°19° and lows 43°6°, with 3.3 in85 mm of precipitation in a typical May.
- Record high
- 98°37° (1911)
- Record low
- 21°−6° (1982)
- Heating degree days
- 334
- Cooling degree days
- 9
Winslow in June
Highs average 75°24° and lows 53°12°, with 4 in102 mm of precipitation in a typical June.
- Record high
- 98°37° (1919)
- Record low
- 26°−3° (1919)
- Heating degree days
- 94
- Cooling degree days
- 61
Winslow in July
Highs average 80°27° and lows 59°15°, with 3.4 in86 mm of precipitation in a typical July.
- Record high
- 101°38° (1911)
- Record low
- 37°3° (1912)
- Heating degree days
- 15
- Cooling degree days
- 158
Winslow in August
Highs average 80°26° and lows 57°14°, with 3.4 in86 mm of precipitation in a typical August.
- Record high
- 101°38° (1975)
- Record low
- 31°−1° (1903)
- Heating degree days
- 23
- Cooling degree days
- 130
Winslow in September
Highs average 72°22° and lows 50°10°, with 3.8 in97 mm of precipitation in a typical September.
- Record high
- 96°36° (2002)
- Record low
- 23°−5° (1904)
- Heating degree days
- 167
- Cooling degree days
- 35
Winslow in OctoberThis month
Highs average 59°15° and lows 38°4°, with 4.9 in124 mm of precipitation in a typical October.
- Record high
- 90°32° (1930)
- Record low
- 10°−12° (1990)
- Heating degree days
- 511
- Cooling degree days
- 1
Winslow in November
Highs average 46°8° and lows 29°−2°, with 3.9 in98 mm of precipitation in a typical November.
- Record high
- 75°24° (2022)
- Record low
- −6°−21° (1896)
- Heating degree days
- 828
- Cooling degree days
- 0
Winslow in December
Highs average 35°1° and lows 17°−8°, with 3.9 in100 mm of precipitation in a typical December.
- Record high
- 67°19° (1982)
- Record low
- −39° (1933)
- Heating degree days
- 1214
- Cooling degree days
- 0