Otterville Illinois Climate Data

Monthly Average Climate Data for Otterville Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.4 °F37.9 °F2.45 in.
February24.7 °F43.4 °F2.26 in.
March33.7 °F54.0 °F3.21 in.
April44.3 °F65.5 °F4.62 in.
May55.3 °F75.1 °F4.99 in.
June64.6 °F83.7 °F4.24 in.
July67.8 °F87.0 °F3.71 in.
August65.8 °F86.0 °F3.66 in.
September57.2 °F79.6 °F3.35 in.
October45.8 °F68.0 °F3.15 in.
November34.9 °F54.0 °F3.41 in.
December26.0 °F42.7 °F2.58 in.
Annual45.1 °F64.7 °F41.63 in.

Climate Data for Otterville Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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