Mansfield Illinois Climate Data

Monthly Average Climate Data for Mansfield Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.3 °F33.4 °F2.2 in.
February20.4 °F37.9 °F1.9 in.
March29.6 °F49.6 °F2.66 in.
April40.4 °F63.3 °F4.01 in.
May52.3 °F73.9 °F4.34 in.
June61.3 °F82.4 °F4.63 in.
July64.1 °F84.7 °F4.14 in.
August61.8 °F83.3 °F3.32 in.
September54.4 °F78.8 °F3.29 in.
October42.3 °F65.8 °F3.38 in.
November31.9 °F50.8 °F2.99 in.
December23.1 °F38.3 °F2.37 in.
Annual41.6 °F61.9 °F39.23 in.

Climate Data for Mansfield 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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