Howell weather by month
What a typical year looks like in Howell, Michigan: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Whitmore Lake 1nw, 23 km from Howell; records cover 2007–2026.
The year at a glance
- Precipitation a year
- 34.5 in875 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 30
- First fall freeze
- Oct 16
- Heating degree days
- 6,965
- Cooling degree days
- 481
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −9°−23° (heating, 99%) and 91°33° (cooling, 1%).
Month by month
Howell in January
Highs average 30°−1° and lows 15°−10°, with 2.4 in60 mm of precipitation in a typical January.
- Record high
- 61°16° (2008)
- Record low
- −19°−28° (2019)
- Heating degree days
- 1320
- Cooling degree days
- 0
Howell in February
Highs average 34°1° and lows 14°−10°, with 2.1 in53 mm of precipitation in a typical February.
- Record high
- 71°22° (2024)
- Record low
- −26°−32° (2015)
- Heating degree days
- 1153
- Cooling degree days
- 0
Howell in March
Highs average 44°7° and lows 24°−5°, with 2.4 in62 mm of precipitation in a typical March.
- Record high
- 84°29° (2012)
- Record low
- −16°−27° (2014)
- Heating degree days
- 968
- Cooling degree days
- 1
Howell in April
Highs average 57°14° and lows 34°1°, with 3 in76 mm of precipitation in a typical April.
- Record high
- 86°30° (2025)
- Record low
- 15°−9° (2016)
- Heating degree days
- 592
- Cooling degree days
- 1
Howell in May
Highs average 69°20° and lows 45°7°, with 3.7 in93 mm of precipitation in a typical May.
- Record high
- 93°34° (2018)
- Record low
- 26°−3° (2013)
- Heating degree days
- 276
- Cooling degree days
- 22
Howell in June
Highs average 77°25° and lows 54°12°, with 3.7 in94 mm of precipitation in a typical June.
- Record high
- 96°36° (2012)
- Record low
- 38°3° (2013)
- Heating degree days
- 66
- Cooling degree days
- 88
Howell in July
Highs average 82°28° and lows 59°15°, with 3.4 in86 mm of precipitation in a typical July.
- Record high
- 99°37° (2012)
- Record low
- 46°8° (2008)
- Heating degree days
- 17
- Cooling degree days
- 177
Howell in August
Highs average 79°26° and lows 58°14°, with 3.3 in85 mm of precipitation in a typical August.
- Record high
- 93°34° (2012)
- Record low
- 43°6° (2009)
- Heating degree days
- 25
- Cooling degree days
- 135
Howell in September
Highs average 74°23° and lows 50°10°, with 3.1 in79 mm of precipitation in a typical September.
- Record high
- 93°34° (2011)
- Record low
- 33°1° (2020)
- Heating degree days
- 146
- Cooling degree days
- 52
Howell in OctoberThis month
Highs average 60°16° and lows 40°4°, with 2.8 in71 mm of precipitation in a typical October.
- Record high
- 88°31° (2007)
- Record low
- 23°−5° (2008)
- Heating degree days
- 468
- Cooling degree days
- 5
Howell in November
Highs average 47°8° and lows 30°−1°, with 2.5 in63 mm of precipitation in a typical November.
- Record high
- 78°26° (2015)
- Record low
- 5°−15° (2019)
- Heating degree days
- 801
- Cooling degree days
- 0
Howell in December
Highs average 35°2° and lows 22°−6°, with 2.1 in54 mm of precipitation in a typical December.
- Record high
- 60°16° (2008)
- Record low
- −17°−27° (2017)
- Heating degree days
- 1133
- Cooling degree days
- 0