Malta Illinois Climate Data

Monthly Average Climate Data for Malta Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.5 °F28.3 °F1.69 in.
February16.2 °F32.7 °F1.71 in.
March26.2 °F45.0 °F2.24 in.
April36.6 °F58.6 °F3.5 in.
May48.5 °F70.1 °F4.84 in.
June58.5 °F79.6 °F4.78 in.
July62.1 °F82.5 °F3.86 in.
August59.8 °F80.6 °F3.96 in.
September51.4 °F74.8 °F3.41 in.
October39.6 °F62.0 °F2.95 in.
November29.1 °F46.7 °F2.34 in.
December18.8 °F33.9 °F1.97 in.
Annual38.3 °F57.9 °F37.25 in.

Climate Data for Malta Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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