Fitchburg weather by month
What a typical year looks like in Fitchburg, Wisconsin: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Madison Dane County Regional Airport, 18 km from Fitchburg; records cover 1869–2026.
The year at a glance
- Precipitation a year
- 37.1 in943 mm
- Snow a year
- 52 in132 cm
- Last spring freeze
- May 3
- First fall freeze
- Oct 6
- Heating degree days
- 7,139
- Cooling degree days
- 628
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 92°33° (cooling, 1%).
Month by month
Fitchburg in January
Highs average 27°−3° and lows 12°−11°, with 1.5 in37 mm of precipitation and 14 in35 cm of snow in a typical January.
- Record high
- 58°14° (1880)
- Record low
- −37°−38° (1951)
- Heating degree days
- 1413
- Cooling degree days
- 0
Fitchburg in February
Highs average 31°0° and lows 15°−9°, with 1.5 in39 mm of precipitation and 13 in33 cm of snow in a typical February.
- Record high
- 70°21° (2024)
- Record low
- −29°−34° (1996)
- Heating degree days
- 1174
- Cooling degree days
- 0
Fitchburg in March
Highs average 44°6° and lows 25°−4°, with 2.3 in57 mm of precipitation and 7 in18 cm of snow in a typical March.
- Record high
- 83°28° (2012)
- Record low
- −29°−34° (1962)
- Heating degree days
- 951
- Cooling degree days
- 1
Fitchburg in April
Highs average 57°14° and lows 36°2°, with 3.8 in96 mm of precipitation and 2.6 in6.6 cm of snow in a typical April.
- Record high
- 94°34° (1980)
- Record low
- 0°−18° (1982)
- Heating degree days
- 562
- Cooling degree days
- 2
Fitchburg in May
Highs average 69°21° and lows 47°8°, with 4.1 in104 mm of precipitation and 0.1 in0.3 cm of snow in a typical May.
- Record high
- 101°38° (1934)
- Record low
- 19°−7° (1978)
- Heating degree days
- 252
- Cooling degree days
- 36
Fitchburg in June
Highs average 79°26° and lows 57°14°, with 5.3 in134 mm of precipitation in a typical June.
- Record high
- 101°38° (1988)
- Record low
- 31°−1° (1972)
- Heating degree days
- 47
- Cooling degree days
- 137
Fitchburg in July
Highs average 82°28° and lows 62°16°, with 4.5 in115 mm of precipitation in a typical July.
- Record high
- 107°42° (1936)
- Record low
- 36°2° (1965)
- Heating degree days
- 9
- Cooling degree days
- 221
Fitchburg in August
Highs average 80°27° and lows 60°15°, with 4.2 in106 mm of precipitation in a typical August.
- Record high
- 102°39° (1988)
- Record low
- 35°2° (1965)
- Heating degree days
- 20
- Cooling degree days
- 166
Fitchburg in September
Highs average 73°23° and lows 51°11°, with 3.4 in87 mm of precipitation in a typical September.
- Record high
- 99°37° (1953)
- Record low
- 25°−4° (1949)
- Heating degree days
- 151
- Cooling degree days
- 59
Fitchburg in OctoberThis month
Highs average 60°15° and lows 40°4°, with 2.8 in70 mm of precipitation and 0.6 in1.5 cm of snow in a typical October.
- Record high
- 90°32° (1963)
- Record low
- 12°−11° (1887)
- Heating degree days
- 480
- Cooling degree days
- 6
Fitchburg in November
Highs average 45°7° and lows 29°−2°, with 2.2 in56 mm of precipitation and 3 in8 cm of snow in a typical November.
- Record high
- 77°25° (1933)
- Record low
- −14°−26° (1887)
- Heating degree days
- 848
- Cooling degree days
- 0
Fitchburg in December
Highs average 32°0° and lows 18°−8°, with 1.6 in41 mm of precipitation and 12 in30 cm of snow in a typical December.
- Record high
- 68°20° (2021)
- Record low
- −28°−33° (1872)
- Heating degree days
- 1232
- Cooling degree days
- 0