Ironton Missouri Climate Data

Monthly Average Climate Data for Ironton Missouri

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January22.9 °F42.8 °F2.62 in.
February26.0 °F48.3 °F2.72 in.
March34.0 °F58.0 °F3.91 in.
April43.8 °F69.3 °F5.74 in.
May53.7 °F76.5 °F5.6 in.
June61.8 °F84.0 °F4.07 in.
July66.1 °F87.8 °F3.74 in.
August64.1 °F87.3 °F3.81 in.
September56.2 °F80.7 °F3.58 in.
October44.7 °F70.1 °F3.33 in.
November34.3 °F56.5 °F4.61 in.
December26.8 °F45.8 °F3.11 in.
Annual44.5 °F67.3 °F46.84 in.

Climate Data for Ironton Missouri

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 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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