Golconda Illinois Climate Data

Monthly Average Climate Data for Golconda Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.8 °F42.2 °F3.92 in.
February28.4 °F46.9 °F3.54 in.
March36.8 °F56.7 °F4.77 in.
April46.3 °F67.8 °F5.18 in.
May56.7 °F76.7 °F5.05 in.
June65.1 °F84.9 °F4.43 in.
July68.8 °F87.8 °F4.23 in.
August66.6 °F86.8 °F3.01 in.
September59.2 °F81.4 °F3.46 in.
October47.4 °F70.1 °F3.75 in.
November36.6 °F57.0 °F4.11 in.
December29.0 °F46.1 °F4.26 in.
Annual47.2 °F67 °F49.71 in.

Climate Data for Golconda Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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