Alexander Illinois Climate Data

Monthly Average Climate Data for Alexander Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.1 °F35.2 °F2.12 in.
February22.5 °F40.3 °F1.91 in.
March31.6 °F51.8 °F2.8 in.
April42.1 °F64.6 °F4.13 in.
May53.7 °F74.5 °F4.75 in.
June62.9 °F82.9 °F4.73 in.
July66.0 °F85.8 °F3.93 in.
August63.8 °F84.6 °F3.38 in.
September55.4 °F79.6 °F3.39 in.
October44.0 °F67.1 °F3.09 in.
November33.3 °F52.2 °F3.0 in.
December24.4 °F40.4 °F2.19 in.
Annual43.2 °F63.3 °F39.42 in.

Climate Data for Alexander 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 6a : -10°F to -5°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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