Ashton Iowa Climate Data

Monthly Average Climate Data for Ashton Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.0 °F24.6 °F0.76 in.
February11.2 °F29.2 °F0.87 in.
March22.7 °F42.0 °F1.66 in.
April34.3 °F57.3 °F3.19 in.
May47.2 °F69.8 °F4.13 in.
June58.3 °F79.8 °F4.76 in.
July61.6 °F82.8 °F3.49 in.
August59.1 °F80.5 °F3.46 in.
September50.1 °F74.3 °F3.26 in.
October37.2 °F60.8 °F2.38 in.
November24.1 °F43.5 °F1.45 in.
December12.9 °F29.6 °F1.03 in.
Annual35.5 °F56.2 °F30.44 in.

Climate Data for Ashton Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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