Montrose Illinois Climate Data

Monthly Average Climate Data for Montrose Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.1 °F37.0 °F2.98 in.
February24.0 °F41.8 °F2.44 in.
March33.0 °F52.8 °F3.29 in.
April43.4 °F65.6 °F4.85 in.
May54.4 °F75.3 °F4.85 in.
June63.3 °F83.8 °F5.04 in.
July66.1 °F87.0 °F4.31 in.
August64.0 °F85.9 °F3.04 in.
September55.9 °F80.5 °F3.1 in.
October44.8 °F68.4 °F3.57 in.
November34.3 °F53.4 °F3.73 in.
December26.1 °F41.6 °F2.92 in.
Annual44.2 °F64.4 °F44.12 in.

Climate Data for Montrose Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
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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