Oakland Illinois Climate Data

Monthly Average Climate Data for Oakland Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.3 °F35.2 °F2.6 in.
February22.4 °F39.8 °F2.21 in.
March31.5 °F51.2 °F2.96 in.
April42.2 °F64.3 °F4.59 in.
May53.4 °F74.4 °F4.45 in.
June62.4 °F82.9 °F4.78 in.
July65.0 °F85.7 °F4.16 in.
August62.9 °F84.5 °F2.98 in.
September55.1 °F79.4 °F3.08 in.
October43.7 °F67.0 °F3.53 in.
November33.3 °F52.1 °F3.52 in.
December24.9 °F40.0 °F2.65 in.
Annual43 °F63 °F41.51 in.

Climate Data for Oakland Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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