New Grand Chain Illinois Climate Data

Monthly Average Climate Data for New Grand Chain Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January26.1 °F43.0 °F3.81 in.
February29.2 °F47.7 °F3.56 in.
March37.1 °F57.4 °F4.7 in.
April47.0 °F68.3 °F5.22 in.
May57.0 °F77.0 °F5.21 in.
June65.4 °F85.4 °F4.47 in.
July69.0 °F88.5 °F3.9 in.
August66.8 °F87.5 °F2.69 in.
September59.1 °F81.9 °F3.42 in.
October47.4 °F71.1 °F3.88 in.
November37.3 °F57.4 °F4.19 in.
December30.0 °F46.4 °F4.31 in.
Annual47.6 °F67.6 °F49.36 in.

Climate Data for New Grand Chain Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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