Milton Iowa Climate Data

Monthly Average Climate Data for Milton Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.3 °F32.6 °F1.41 in.
February18.7 °F37.3 °F1.76 in.
March29.6 °F50.2 °F2.28 in.
April40.4 °F63.1 °F3.76 in.
May51.9 °F72.9 °F5.46 in.
June61.6 °F82.3 °F5.03 in.
July65.5 °F86.1 °F4.3 in.
August63.2 °F84.7 °F3.88 in.
September54.5 °F77.9 °F3.74 in.
October42.9 °F65.1 °F2.99 in.
November31.2 °F50.1 °F2.28 in.
December21.1 °F37.6 °F1.69 in.
Annual41.3 °F61.7 °F38.58 in.

Climate Data for Milton Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°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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