Pleasant Plains Illinois Climate Data

Monthly Average Climate Data for Pleasant Plains Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.4 °F35.1 °F2.12 in.
February21.7 °F40.0 °F1.91 in.
March31.0 °F51.7 °F2.66 in.
April41.7 °F64.3 °F4.0 in.
May53.1 °F74.1 °F4.61 in.
June62.4 °F82.5 °F4.59 in.
July65.5 °F85.6 °F3.89 in.
August63.4 °F84.3 °F3.51 in.
September55.1 °F79.0 °F3.35 in.
October43.5 °F66.5 °F3.16 in.
November32.8 °F52.2 °F2.98 in.
December23.8 °F40.2 °F2.21 in.
Annual42.7 °F63 °F38.99 in.

Climate Data for Pleasant Plains 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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