Springfield weather by month
What a typical year looks like in Springfield, Illinois: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Springfield Abraham Lincoln Capital Airport, 7 km from Springfield; records cover 1879–2026.
The year at a glance
- Precipitation a year
- 38 in966 mm
- Snow a year
- 22 in55 cm
- Last spring freeze
- Apr 14
- First fall freeze
- Oct 13
- Heating degree days
- 5,218
- Cooling degree days
- 1,251
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
Springfield in January
Highs average 36°2° and lows 20°−7°, with 2 in52 mm of precipitation and 7 in17 cm of snow in a typical January.
- Record high
- 73°23° (1909)
- Record low
- −22°−30° (1884)
- Heating degree days
- 1150
- Cooling degree days
- 0
Springfield in February
Highs average 41°5° and lows 24°−5°, with 1.9 in49 mm of precipitation and 6 in15 cm of snow in a typical February.
- Record high
- 80°27° (2024)
- Record low
- −24°−31° (1905)
- Heating degree days
- 913
- Cooling degree days
- 0
Springfield in March
Highs average 53°12° and lows 33°1°, with 2.8 in70 mm of precipitation and 3 in8 cm of snow in a typical March.
- Record high
- 92°33° (2026)
- Record low
- −12°−24° (1960)
- Heating degree days
- 681
- Cooling degree days
- 3
Springfield in April
Highs average 66°19° and lows 43°6°, with 4 in101 mm of precipitation and 0.3 in0.8 cm of snow in a typical April.
- Record high
- 90°32° (1930)
- Record low
- 16°−9° (2018)
- Heating degree days
- 336
- Cooling degree days
- 19
Springfield in May
Highs average 76°24° and lows 54°12°, with 4.5 in115 mm of precipitation in a typical May.
- Record high
- 101°38° (1934)
- Record low
- 28°−2° (1966)
- Heating degree days
- 111
- Cooling degree days
- 112
Springfield in June
Highs average 84°29° and lows 63°17°, with 4.6 in117 mm of precipitation in a typical June.
- Record high
- 104°40° (1934)
- Record low
- 39°4° (2003)
- Heating degree days
- 11
- Cooling degree days
- 270
Springfield in July
Highs average 87°30° and lows 66°19°, with 3.9 in98 mm of precipitation in a typical July.
- Record high
- 112°44° (1954)
- Record low
- 48°9° (1967)
- Heating degree days
- 1
- Cooling degree days
- 357
Springfield in August
Highs average 85°30° and lows 64°18°, with 3.4 in86 mm of precipitation in a typical August.
- Record high
- 108°42° (1934)
- Record low
- 43°6° (1964)
- Heating degree days
- 3
- Cooling degree days
- 308
Springfield in September
Highs average 80°27° and lows 56°13°, with 2.9 in73 mm of precipitation in a typical September.
- Record high
- 102°39° (2011)
- Record low
- 31°−1° (1899)
- Heating degree days
- 61
- Cooling degree days
- 151
Springfield in OctoberThis month
Highs average 67°20° and lows 45°7°, with 3.3 in83 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 93°34° (1953)
- Record low
- 13°−11° (1925)
- Heating degree days
- 310
- Cooling degree days
- 30
Springfield in November
Highs average 53°12° and lows 34°1°, with 2.7 in69 mm of precipitation and 1.2 in3 cm of snow in a typical November.
- Record high
- 83°28° (1950)
- Record low
- −3°−19° (1964)
- Heating degree days
- 648
- Cooling degree days
- 1
Springfield in December
Highs average 41°5° and lows 25°−4°, with 2.2 in55 mm of precipitation and 4 in11 cm of snow in a typical December.
- Record high
- 74°23° (1970)
- Record low
- −21°−29° (1989)
- Heating degree days
- 993
- Cooling degree days
- 0