Mazomanie weather by month
What a typical year looks like in Mazomanie, Wisconsin: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Sauk City Wwtp, 11 km from Mazomanie; records cover 2007–2026.
The year at a glance
- Precipitation a year
- 36.5 in928 mm
- Snow a year
- Rare
- Last spring freeze
- May 10
- First fall freeze
- Oct 5
- Heating degree days
- 7,464
- Cooling degree days
- 530
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −16°−27° (heating, 99%) and 92°33° (cooling, 1%).
Month by month
Mazomanie in January
Highs average 27°−3° and lows 8°−13°, with 1.3 in33 mm of precipitation in a typical January.
- Record high
- 59°15° (2025)
- Record low
- −38°−39° (2019)
- Heating degree days
- 1482
- Cooling degree days
- 0
Mazomanie in February
Highs average 31°−1° and lows 11°−12°, with 1.3 in34 mm of precipitation in a typical February.
- Record high
- 72°22° (2024)
- Record low
- −38°−39° (2019)
- Heating degree days
- 1235
- Cooling degree days
- 0
Mazomanie in March
Highs average 44°7° and lows 23°−5°, with 1.9 in49 mm of precipitation in a typical March.
- Record high
- 82°28° (2012)
- Record low
- −17°−27° (2014)
- Heating degree days
- 986
- Cooling degree days
- 1
Mazomanie in April
Highs average 57°14° and lows 34°1°, with 3.9 in98 mm of precipitation in a typical April.
- Record high
- 84°29° (2009)
- Record low
- 11°−12° (2018)
- Heating degree days
- 593
- Cooling degree days
- 1
Mazomanie in May
Highs average 69°21° and lows 46°8°, with 4.3 in110 mm of precipitation in a typical May.
- Record high
- 96°36° (2018)
- Record low
- 22°−6° (2020)
- Heating degree days
- 265
- Cooling degree days
- 28
Mazomanie in June
Highs average 79°26° and lows 56°13°, with 5.3 in135 mm of precipitation in a typical June.
- Record high
- 96°36° (2008)
- Record low
- 37°3° (2015)
- Heating degree days
- 45
- Cooling degree days
- 112
Mazomanie in July
Highs average 82°28° and lows 59°15°, with 4.2 in108 mm of precipitation in a typical July.
- Record high
- 103°39° (2012)
- Record low
- 44°7° (2008)
- Heating degree days
- 13
- Cooling degree days
- 189
Mazomanie in August
Highs average 80°27° and lows 58°14°, with 4.1 in105 mm of precipitation in a typical August.
- Record high
- 97°36° (2008)
- Record low
- 40°4° (2008)
- Heating degree days
- 26
- Cooling degree days
- 148
Mazomanie in September
Highs average 74°23° and lows 49°9°, with 3.9 in100 mm of precipitation in a typical September.
- Record high
- 94°34° (2013)
- Record low
- 28°−2° (2012)
- Heating degree days
- 161
- Cooling degree days
- 47
Mazomanie in OctoberThis month
Highs average 61°16° and lows 38°3°, with 2.4 in60 mm of precipitation in a typical October.
- Record high
- 89°32° (2025)
- Record low
- 20°−7° (2018)
- Heating degree days
- 497
- Cooling degree days
- 4
Mazomanie in November
Highs average 45°7° and lows 26°−3°, with 2.2 in57 mm of precipitation in a typical November.
- Record high
- 75°24° (2015)
- Record low
- −2°−19° (2014)
- Heating degree days
- 884
- Cooling degree days
- 0
Mazomanie in December
Highs average 33°0° and lows 15°−9°, with 1.5 in39 mm of precipitation in a typical December.
- Record high
- 69°21° (2021)
- Record low
- −18°−28° (2010)
- Heating degree days
- 1277
- Cooling degree days
- 0