Greenville weather by month
What a typical year looks like in Greenville, Maine: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Greenville Municipal Airport, 2 km from Greenville; records cover 1920–2026.
The year at a glance
- Precipitation a year
- 44.5 in1130 mm
- Snow a year
- Rare
- Last spring freeze
- May 12
- First fall freeze
- Oct 9
- Heating degree days
- 8,860
- Cooling degree days
- 200
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −12°−24° (heating, 99%) and 86°30° (cooling, 1%).
Month by month
Greenville in January
Highs average 23°−5° and lows 5°−15°, with 3 in76 mm of precipitation in a typical January.
- Record high
- 58°14° (2008)
- Record low
- −36°−38° (1957)
- Heating degree days
- 1576
- Cooling degree days
- 0
Greenville in February
Highs average 25°−4° and lows 7°−14°, with 2.4 in61 mm of precipitation in a typical February.
- Record high
- 55°13° (1954)
- Record low
- −42°−41° (1962)
- Heating degree days
- 1364
- Cooling degree days
- 0
Greenville in March
Highs average 34°1° and lows 17°−8°, with 3.2 in81 mm of precipitation in a typical March.
- Record high
- 76°24° (2012)
- Record low
- −27°−33° (1938)
- Heating degree days
- 1221
- Cooling degree days
- 0
Greenville in April
Highs average 46°8° and lows 30°−1°, with 3.6 in91 mm of precipitation in a typical April.
- Record high
- 85°29° (2009)
- Record low
- −8°−22° (1964)
- Heating degree days
- 812
- Cooling degree days
- 0
Greenville in May
Highs average 62°16° and lows 41°5°, with 3.6 in91 mm of precipitation in a typical May.
- Record high
- 90°32° (1932)
- Record low
- 18°−8° (1950)
- Heating degree days
- 427
- Cooling degree days
- 6
Greenville in June
Highs average 70°21° and lows 51°11°, with 4 in103 mm of precipitation in a typical June.
- Record high
- 95°35° (1944)
- Record low
- 24°−4° (1928)
- Heating degree days
- 160
- Cooling degree days
- 31
Greenville in July
Highs average 75°24° and lows 57°14°, with 4 in102 mm of precipitation in a typical July.
- Record high
- 95°35° (1921)
- Record low
- 27°−3° (1928)
- Heating degree days
- 45
- Cooling degree days
- 85
Greenville in August
Highs average 74°23° and lows 56°13°, with 4 in101 mm of precipitation in a typical August.
- Record high
- 96°36° (1944)
- Record low
- 30°−1° (1965)
- Heating degree days
- 67
- Cooling degree days
- 60
Greenville in September
Highs average 66°19° and lows 48°9°, with 3.4 in87 mm of precipitation in a typical September.
- Record high
- 92°33° (2002)
- Record low
- 20°−7° (1939)
- Heating degree days
- 251
- Cooling degree days
- 17
Greenville in OctoberThis month
Highs average 53°11° and lows 37°3°, with 5 in127 mm of precipitation in a typical October.
- Record high
- 84°29° (1922)
- Record low
- 10°−12° (1928)
- Heating degree days
- 624
- Cooling degree days
- 1
Greenville in November
Highs average 39°4° and lows 27°−3°, with 4 in101 mm of precipitation in a typical November.
- Record high
- 74°23° (2020)
- Record low
- −6°−21° (1947)
- Heating degree days
- 963
- Cooling degree days
- 0
Greenville in December
Highs average 28°−2° and lows 15°−10°, with 4.3 in110 mm of precipitation in a typical December.
- Record high
- 59°15° (1941)
- Record low
- −32°−36° (1933)
- Heating degree days
- 1350
- Cooling degree days
- 0