Marshall Illinois Climate Data

Monthly Average Climate Data for Marshall Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January20.3 °F36.8 °F2.87 in.
February23.2 °F41.7 °F2.49 in.
March32.3 °F52.6 °F3.41 in.
April42.8 °F65.6 °F5.31 in.
May53.5 °F74.9 °F4.8 in.
June62.0 °F83.7 °F4.72 in.
July65.0 °F86.7 °F4.35 in.
August62.7 °F85.7 °F2.96 in.
September55.0 °F80.2 °F3.18 in.
October43.5 °F68.2 °F3.7 in.
November33.6 °F53.2 °F3.71 in.
December25.4 °F41.3 °F2.84 in.
Annual43.3 °F64.2 °F44.34 in.

Climate Data for Marshall Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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