Gladstone Illinois Climate Data

Monthly Average Climate Data for Gladstone Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.8 °F32.0 °F1.46 in.
February19.6 °F36.5 °F1.78 in.
March30.3 °F49.0 °F2.41 in.
April41.2 °F62.1 °F3.78 in.
May53.0 °F72.7 °F5.02 in.
June62.8 °F81.9 °F4.63 in.
July66.2 °F85.4 °F4.0 in.
August64.0 °F83.6 °F3.71 in.
September55.7 °F77.5 °F3.66 in.
October43.9 °F64.8 °F2.87 in.
November32.2 °F49.8 °F2.45 in.
December21.9 °F37.3 °F1.79 in.
Annual42.2 °F61.1 °F37.56 in.

Climate Data for Gladstone Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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