Mount Olive Illinois Climate Data

Monthly Average Climate Data for Mount Olive Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January20.6 °F36.1 °F2.57 in.
February23.9 °F41.5 °F2.27 in.
March32.9 °F52.4 °F3.11 in.
April43.1 °F64.4 °F4.81 in.
May54.2 °F74.2 °F5.05 in.
June63.1 °F83.0 °F4.34 in.
July66.3 °F86.0 °F4.07 in.
August64.1 °F85.2 °F3.44 in.
September55.7 °F79.4 °F3.38 in.
October44.3 °F67.4 °F3.2 in.
November34.5 °F52.8 °F3.54 in.
December25.6 °F41.0 °F2.65 in.
Annual44 °F63.6 °F42.43 in.

Climate Data for Mount Olive Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°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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