Wadsworth weather by month
What a typical year looks like in Wadsworth, Illinois: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at KENOSHA WWTP, 15 km from Wadsworth; records cover 1944–2026.
The year at a glance
- Precipitation a year
- 37.6 in955 mm
- Snow a year
- 36 in92 cm
- Last spring freeze
- Apr 21
- First fall freeze
- Oct 24
- Heating degree days
- 6,617
- Cooling degree days
- 609
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −3°−19° (heating, 99%) and 92°33° (cooling, 1%).
Month by month
Wadsworth in January
Highs average 31°−1° and lows 17°−8°, with 1.9 in49 mm of precipitation and 11 in29 cm of snow in a typical January.
- Record high
- 65°18° (2008)
- Record low
- −31°−35° (1982)
- Heating degree days
- 1272
- Cooling degree days
- 0
Wadsworth in February
Highs average 34°1° and lows 20°−7°, with 1.8 in46 mm of precipitation and 10 in25 cm of snow in a typical February.
- Record high
- 74°23° (2024)
- Record low
- −23°−31° (1996)
- Heating degree days
- 1061
- Cooling degree days
- 0
Wadsworth in March
Highs average 43°6° and lows 29°−2°, with 2.7 in68 mm of precipitation and 6 in14 cm of snow in a typical March.
- Record high
- 83°28° (1986)
- Record low
- −9°−23° (1962)
- Heating degree days
- 906
- Cooling degree days
- 0
Wadsworth in April
Highs average 53°12° and lows 37°3°, with 4.2 in106 mm of precipitation and 0.8 in2 cm of snow in a typical April.
- Record high
- 90°32° (1980)
- Record low
- 10°−12° (1982)
- Heating degree days
- 600
- Cooling degree days
- 2
Wadsworth in May
Highs average 64°18° and lows 47°8°, with 4.1 in105 mm of precipitation in a typical May.
- Record high
- 94°34° (1950)
- Record low
- 26°−3° (1977)
- Heating degree days
- 321
- Cooling degree days
- 16
Wadsworth in June
Highs average 73°23° and lows 57°14°, with 4.1 in105 mm of precipitation in a typical June.
- Record high
- 102°39° (1953)
- Record low
- 33°1° (1945)
- Heating degree days
- 89
- Cooling degree days
- 92
Wadsworth in July
Highs average 80°27° and lows 64°18°, with 3.4 in87 mm of precipitation in a typical July.
- Record high
- 105°41° (2012)
- Record low
- 41°5° (1983)
- Heating degree days
- 9
- Cooling degree days
- 222
Wadsworth in August
Highs average 79°26° and lows 64°18°, with 3.7 in93 mm of precipitation in a typical August.
- Record high
- 102°39° (1947)
- Record low
- 40°4° (1978)
- Heating degree days
- 9
- Cooling degree days
- 200
Wadsworth in September
Highs average 72°22° and lows 56°13°, with 3.5 in90 mm of precipitation in a typical September.
- Record high
- 100°38° (1953)
- Record low
- 30°−1° (1974)
- Heating degree days
- 101
- Cooling degree days
- 71
Wadsworth in OctoberThis month
Highs average 60°16° and lows 45°7°, with 3.5 in89 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 89°32° (1962)
- Record low
- 20°−7° (1980)
- Heating degree days
- 397
- Cooling degree days
- 6
Wadsworth in November
Highs average 47°8° and lows 33°0°, with 2.4 in61 mm of precipitation and 1.5 in3.8 cm of snow in a typical November.
- Record high
- 81°27° (1944)
- Record low
- −5°−21° (1976)
- Heating degree days
- 747
- Cooling degree days
- 0
Wadsworth in December
Highs average 36°2° and lows 23°−5°, with 2.2 in56 mm of precipitation and 7 in18 cm of snow in a typical December.
- Record high
- 70°21° (2001)
- Record low
- −29°−34° (1983)
- Heating degree days
- 1105
- Cooling degree days
- 0