Delphos Iowa Climate Data

Monthly Average Climate Data for Delphos Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.6 °F32.2 °F0.83 in.
February17.8 °F37.4 °F1.29 in.
March28.4 °F50.0 °F2.22 in.
April39.3 °F62.0 °F3.75 in.
May51.0 °F71.8 °F5.53 in.
June60.9 °F81.0 °F5.31 in.
July65.1 °F85.4 °F4.55 in.
August62.7 °F83.8 °F4.32 in.
September53.7 °F76.7 °F3.69 in.
October41.4 °F64.5 °F3.04 in.
November29.5 °F49.5 °F2.07 in.
December19.1 °F37.1 °F1.4 in.
Annual40.2 °F61 °F38 in.

Climate Data for Delphos Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost125-150 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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