Allen weather by month
What a typical year looks like in Allen, Michigan: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Hillsdale, 11 km from Allen; records cover 1891–2026.
The year at a glance
- Precipitation a year
- 39.5 in1004 mm
- Snow a year
- 44 in112 cm
- Last spring freeze
- Apr 30
- First fall freeze
- Oct 14
- Heating degree days
- 6,797
- Cooling degree days
- 595
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −6°−21° (heating, 99%) and 92°33° (cooling, 1%).
Month by month
Allen in January
Highs average 31°−1° and lows 15°−9°, with 2.8 in70 mm of precipitation and 13 in34 cm of snow in a typical January.
- Record high
- 67°19° (1950)
- Record low
- −22°−30° (1994)
- Heating degree days
- 1306
- Cooling degree days
- 0
Allen in February
Highs average 34°1° and lows 16°−9°, with 2.3 in57 mm of precipitation and 12 in29 cm of snow in a typical February.
- Record high
- 72°22° (2024)
- Record low
- −21°−29° (1929)
- Heating degree days
- 1116
- Cooling degree days
- 0
Allen in March
Highs average 44°7° and lows 25°−4°, with 2.4 in61 mm of precipitation and 5 in13 cm of snow in a typical March.
- Record high
- 86°30° (2012)
- Record low
- −15°−26° (2015)
- Heating degree days
- 949
- Cooling degree days
- 1
Allen in April
Highs average 58°14° and lows 35°2°, with 3.7 in93 mm of precipitation and 1.5 in3.8 cm of snow in a typical April.
- Record high
- 88°31° (1899)
- Record low
- 3°−16° (1982)
- Heating degree days
- 564
- Cooling degree days
- 4
Allen in May
Highs average 69°21° and lows 47°8°, with 4.6 in116 mm of precipitation in a typical May.
- Record high
- 94°34° (1911)
- Record low
- 16°−9° (2017)
- Heating degree days
- 252
- Cooling degree days
- 37
Allen in June
Highs average 79°26° and lows 57°14°, with 3.9 in99 mm of precipitation in a typical June.
- Record high
- 104°40° (1988)
- Record low
- 31°−1° (1913)
- Heating degree days
- 54
- Cooling degree days
- 129
Allen in July
Highs average 83°28° and lows 60°16°, with 3.6 in92 mm of precipitation in a typical July.
- Record high
- 107°42° (1936)
- Record low
- 36°2° (1984)
- Heating degree days
- 12
- Cooling degree days
- 205
Allen in August
Highs average 80°27° and lows 58°15°, with 3.9 in100 mm of precipitation in a typical August.
- Record high
- 104°40° (1918)
- Record low
- 34°1° (1897)
- Heating degree days
- 24
- Cooling degree days
- 154
Allen in September
Highs average 74°23° and lows 50°10°, with 3.6 in91 mm of precipitation in a typical September.
- Record high
- 98°37° (1913)
- Record low
- 26°−3° (1899)
- Heating degree days
- 146
- Cooling degree days
- 59
Allen in OctoberThis month
Highs average 61°16° and lows 40°4°, with 3.4 in87 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 91°33° (2007)
- Record low
- 15°−9° (1952)
- Heating degree days
- 460
- Cooling degree days
- 6
Allen in November
Highs average 47°8° and lows 30°−1°, with 3 in75 mm of precipitation and 3 in9 cm of snow in a typical November.
- Record high
- 79°26° (1950)
- Record low
- −4°−20° (1950)
- Heating degree days
- 790
- Cooling degree days
- 0
Allen in December
Highs average 36°2° and lows 22°−6°, with 2.4 in62 mm of precipitation and 9 in23 cm of snow in a typical December.
- Record high
- 69°21° (2001)
- Record low
- −19°−28° (1983)
- Heating degree days
- 1124
- Cooling degree days
- 0