Trilla Illinois Climate Data

Monthly Average Climate Data for Trilla Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January20.3 °F36.3 °F2.68 in.
February23.2 °F41.0 °F2.32 in.
March32.3 °F52.1 °F3.05 in.
April42.9 °F64.8 °F4.77 in.
May54.1 °F74.8 °F4.5 in.
June63.0 °F83.5 °F4.84 in.
July65.8 °F86.6 °F4.23 in.
August63.6 °F85.5 °F2.9 in.
September55.8 °F80.1 °F3.04 in.
October44.5 °F67.7 °F3.54 in.
November33.9 °F52.9 °F3.62 in.
December25.6 °F41.0 °F2.75 in.
Annual43.8 °F63.9 °F42.24 in.

Climate Data for Trilla 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 ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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