Nilwood Illinois Climate Data

Monthly Average Climate Data for Nilwood Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January20.1 °F35.8 °F2.29 in.
February23.6 °F41.1 °F2.07 in.
March32.7 °F52.4 °F2.84 in.
April43.1 °F65.1 °F4.5 in.
May54.4 °F74.9 °F4.87 in.
June63.4 °F83.2 °F4.46 in.
July66.5 °F86.2 °F3.52 in.
August64.4 °F85.1 °F3.34 in.
September56.1 °F79.7 °F3.28 in.
October44.8 °F67.5 °F3.37 in.
November34.4 °F52.6 °F3.21 in.
December25.3 °F40.8 °F2.29 in.
Annual44.1 °F63.7 °F40.04 in.

Climate Data for Nilwood Illinois

Average First Frost DateOct. 11 - Oct. 20
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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