Oblong Illinois Climate Data

Monthly Average Climate Data for Oblong Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.7 °F37.8 °F3.2 in.
February24.7 °F42.8 °F2.43 in.
March33.4 °F53.6 °F3.64 in.
April43.8 °F65.8 °F5.05 in.
May54.6 °F75.7 °F4.85 in.
June63.4 °F84.4 °F4.86 in.
July66.0 °F87.4 °F4.3 in.
August63.8 °F86.3 °F3.01 in.
September55.9 °F80.9 °F3.41 in.
October44.6 °F68.8 °F3.66 in.
November34.3 °F54.1 °F3.83 in.
December26.3 °F42.3 °F3.12 in.
Annual44.4 °F65 °F45.36 in.

Climate Data for Oblong 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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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