Dowell Illinois Climate Data

Monthly Average Climate Data for Dowell Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.9 °F40.8 °F3.09 in.
February27.5 °F45.8 °F2.91 in.
March35.7 °F55.9 °F4.17 in.
April46.0 °F67.5 °F5.23 in.
May56.3 °F76.6 °F5.39 in.
June64.8 °F85.3 °F4.79 in.
July68.2 °F87.9 °F3.9 in.
August65.6 °F86.9 °F3.15 in.
September57.4 °F81.1 °F3.31 in.
October45.9 °F70.0 °F3.48 in.
November35.9 °F56.1 °F4.13 in.
December28.2 °F45.0 °F3.32 in.
Annual46.3 °F66.6 °F46.87 in.

Climate Data for Dowell Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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