Morrisonville weather by month
What a typical year looks like in Morrisonville, Illinois: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at MORRISONVILLE, 1 km from Morrisonville; records cover 1979–2026.
The year at a glance
- Precipitation a year
- 38.1 in968 mm
- Snow a year
- 16 in41 cm
- Last spring freeze
- Apr 12
- First fall freeze
- Oct 12
- Heating degree days
- 5,325
- Cooling degree days
- 1,207
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −2°−19° (heating, 99%) and 95°35° (cooling, 1%).
Month by month
Morrisonville in January
Highs average 36°2° and lows 19°−7°, with 2.2 in55 mm of precipitation and 6 in15 cm of snow in a typical January.
- Record high
- 70°21° (2013)
- Record low
- −23°−31° (1994)
- Heating degree days
- 1164
- Cooling degree days
- 0
Morrisonville in February
Highs average 41°5° and lows 23°−5°, with 1.8 in46 mm of precipitation and 4 in10 cm of snow in a typical February.
- Record high
- 78°26° (2024)
- Record low
- −18°−28° (1982)
- Heating degree days
- 924
- Cooling degree days
- 0
Morrisonville in March
Highs average 52°11° and lows 32°0°, with 2.7 in69 mm of precipitation and 2.4 in6.1 cm of snow in a typical March.
- Record high
- 94°34° (2026)
- Record low
- −3°−19° (1980)
- Heating degree days
- 718
- Cooling degree days
- 3
Morrisonville in April
Highs average 65°18° and lows 43°6°, with 4.3 in109 mm of precipitation in a typical April.
- Record high
- 92°33° (1987)
- Record low
- 15°−9° (1982)
- Heating degree days
- 350
- Cooling degree days
- 18
Morrisonville in May
Highs average 75°24° and lows 54°12°, with 4.6 in116 mm of precipitation in a typical May.
- Record high
- 97°36° (2024)
- Record low
- 30°−1° (1981)
- Heating degree days
- 115
- Cooling degree days
- 104
Morrisonville in June
Highs average 83°28° and lows 63°17°, with 3.9 in100 mm of precipitation in a typical June.
- Record high
- 102°39° (1988)
- Record low
- 30°−1° (2003)
- Heating degree days
- 13
- Cooling degree days
- 259
Morrisonville in July
Highs average 86°30° and lows 66°19°, with 3 in75 mm of precipitation in a typical July.
- Record high
- 104°40° (2012)
- Record low
- 48°9° (2013)
- Heating degree days
- 1
- Cooling degree days
- 344
Morrisonville in August
Highs average 86°30° and lows 64°18°, with 3.5 in89 mm of precipitation in a typical August.
- Record high
- 104°40° (1988)
- Record low
- 41°5° (1986)
- Heating degree days
- 4
- Cooling degree days
- 298
Morrisonville in September
Highs average 81°27° and lows 56°13°, with 3.5 in90 mm of precipitation in a typical September.
- Record high
- 105°41° (2026)
- Record low
- 29°−2° (1983)
- Heating degree days
- 60
- Cooling degree days
- 154
Morrisonville in OctoberThis month
Highs average 68°20° and lows 44°7°, with 3.2 in82 mm of precipitation and 0.2 in0.5 cm of snow in a typical October.
- Record high
- 94°34° (2019)
- Record low
- 20°−7° (1992)
- Heating degree days
- 307
- Cooling degree days
- 26
Morrisonville in November
Highs average 53°12° and lows 33°1°, with 3.2 in81 mm of precipitation and 0.6 in1.5 cm of snow in a typical November.
- Record high
- 81°27° (1999)
- Record low
- 0°−18° (1991)
- Heating degree days
- 665
- Cooling degree days
- 1
Morrisonville in December
Highs average 41°5° and lows 25°−4°, with 2.2 in56 mm of precipitation and 3 in8 cm of snow in a typical December.
- Record high
- 72°22° (2025)
- Record low
- −21°−29° (1989)
- Heating degree days
- 1004
- Cooling degree days
- 0