Junction City Illinois Climate Data

Monthly Average Climate Data for Junction City Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January22.2 °F38.6 °F3.03 in.
February25.4 °F43.5 °F2.56 in.
March34.3 °F54.0 °F3.68 in.
April44.5 °F66.1 °F4.83 in.
May55.3 °F75.5 °F5.01 in.
June64.2 °F84.5 °F4.87 in.
July67.3 °F87.6 °F4.04 in.
August65.0 °F86.7 °F3.25 in.
September56.7 °F80.5 °F3.4 in.
October45.2 °F68.9 °F3.42 in.
November35.0 °F54.3 °F3.83 in.
December26.8 °F43.0 °F2.98 in.
Annual45.2 °F65.3 °F44.9 in.

Climate Data for Junction City Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
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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