Martinsville Illinois Climate Data

Monthly Average Climate Data for Martinsville Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January20.8 °F36.8 °F3.01 in.
February23.6 °F41.8 °F2.52 in.
March32.7 °F52.7 °F3.2 in.
April43.2 °F65.4 °F5.0 in.
May54.0 °F75.0 °F4.65 in.
June62.8 °F83.6 °F4.89 in.
July65.6 °F86.8 °F4.26 in.
August63.5 °F85.7 °F3.01 in.
September55.6 °F80.3 °F3.06 in.
October44.2 °F67.9 °F3.7 in.
November34.0 °F53.2 °F3.78 in.
December25.7 °F41.3 °F2.9 in.
Annual43.8 °F64.2 °F43.98 in.

Climate Data for Martinsville 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 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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