Okawville Illinois Climate Data

Monthly Average Climate Data for Okawville Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January22.4 °F39.4 °F2.75 in.
February25.6 °F44.6 °F2.38 in.
March34.6 °F55.0 °F3.4 in.
April45.2 °F67.0 °F4.78 in.
May55.9 °F76.0 °F4.97 in.
June64.7 °F84.9 °F4.76 in.
July68.2 °F88.3 °F3.98 in.
August66.0 °F87.3 °F3.17 in.
September57.5 °F80.6 °F3.28 in.
October45.7 °F69.1 °F3.13 in.
November35.2 °F55.0 °F3.72 in.
December26.8 °F43.8 °F2.82 in.
Annual45.7 °F65.9 °F43.14 in.

Climate Data for Okawville 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 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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