Sheboygan weather by month
What a typical year looks like in Sheboygan, Wisconsin: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Plymouth Wwtp, 19 km from Sheboygan; records cover 1910–2026.
The year at a glance
- Precipitation a year
- 33.6 in853 mm
- Snow a year
- 45 in114 cm
- Last spring freeze
- May 4
- First fall freeze
- Oct 11
- Heating degree days
- 7,518
- Cooling degree days
- 510
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −8°−22° (heating, 99%) and 92°33° (cooling, 1%).
Month by month
Sheboygan in January
Highs average 26°−3° and lows 12°−11°, with 1.6 in40 mm of precipitation and 12 in31 cm of snow in a typical January.
- Record high
- 60°16° (1944)
- Record low
- −29°−34° (1972)
- Heating degree days
- 1427
- Cooling degree days
- 0
Sheboygan in February
Highs average 30°−1° and lows 14°−10°, with 1.4 in36 mm of precipitation and 11 in28 cm of snow in a typical February.
- Record high
- 71°22° (2024)
- Record low
- −27°−33° (1933)
- Heating degree days
- 1212
- Cooling degree days
- 0
Sheboygan in March
Highs average 41°5° and lows 24°−5°, with 2 in50 mm of precipitation and 6 in15 cm of snow in a typical March.
- Record high
- 84°29° (2012)
- Record low
- −18°−28° (1962)
- Heating degree days
- 1022
- Cooling degree days
- 0
Sheboygan in April
Highs average 53°12° and lows 34°1°, with 3.6 in92 mm of precipitation and 2.1 in5.3 cm of snow in a typical April.
- Record high
- 89°32° (1980)
- Record low
- 8°−13° (1954)
- Heating degree days
- 641
- Cooling degree days
- 2
Sheboygan in May
Highs average 66°19° and lows 45°7°, with 3.8 in97 mm of precipitation and 0.2 in0.5 cm of snow in a typical May.
- Record high
- 94°34° (2018)
- Record low
- 21°−6° (1966)
- Heating degree days
- 318
- Cooling degree days
- 22
Sheboygan in June
Highs average 76°24° and lows 55°13°, with 4.2 in107 mm of precipitation in a typical June.
- Record high
- 101°38° (1931)
- Record low
- 30°−1° (1945)
- Heating degree days
- 85
- Cooling degree days
- 97
Sheboygan in July
Highs average 81°27° and lows 60°16°, with 3.5 in89 mm of precipitation in a typical July.
- Record high
- 107°42° (1936)
- Record low
- 39°4° (1967)
- Heating degree days
- 20
- Cooling degree days
- 193
Sheboygan in August
Highs average 79°26° and lows 59°15°, with 3.7 in94 mm of precipitation in a typical August.
- Record high
- 101°38° (1918)
- Record low
- 36°2° (1915)
- Heating degree days
- 30
- Cooling degree days
- 144
Sheboygan in September
Highs average 72°22° and lows 51°10°, with 2.8 in71 mm of precipitation in a typical September.
- Record high
- 98°37° (1953)
- Record low
- 25°−4° (1926)
- Heating degree days
- 164
- Cooling degree days
- 48
Sheboygan in OctoberThis month
Highs average 58°15° and lows 39°4°, with 3 in75 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 88°31° (1963)
- Record low
- 6°−14° (1925)
- Heating degree days
- 504
- Cooling degree days
- 4
Sheboygan in November
Highs average 44°7° and lows 29°−2°, with 2.1 in54 mm of precipitation and 2.3 in5.8 cm of snow in a typical November.
- Record high
- 75°24° (1944)
- Record low
- −7°−22° (1976)
- Heating degree days
- 861
- Cooling degree days
- 0
Sheboygan in December
Highs average 32°0° and lows 18°−8°, with 1.8 in46 mm of precipitation and 11 in27 cm of snow in a typical December.
- Record high
- 67°19° (2001)
- Record low
- −20°−29° (1924)
- Heating degree days
- 1234
- Cooling degree days
- 0