Latham Illinois Climate Data

Monthly Average Climate Data for Latham Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.3 °F34.8 °F2.22 in.
February21.3 °F39.7 °F2.04 in.
March30.6 °F51.1 °F2.74 in.
April41.6 °F64.3 °F4.06 in.
May53.0 °F74.4 °F4.43 in.
June62.0 °F83.2 °F4.5 in.
July65.0 °F86.0 °F4.07 in.
August63.1 °F84.3 °F3.29 in.
September54.8 °F79.3 °F3.06 in.
October43.1 °F66.7 °F3.28 in.
November32.4 °F51.8 °F2.95 in.
December23.9 °F39.6 °F2.3 in.
Annual42.4 °F62.9 °F38.94 in.

Climate Data for Latham 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 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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