Delhi Iowa Climate Data

Monthly Average Climate Data for Delhi Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January8.3 °F25.9 °F1.24 in.
February12.2 °F30.4 °F1.32 in.
March23.9 °F43.5 °F2.14 in.
April35.0 °F57.3 °F3.97 in.
May46.9 °F68.9 °F4.75 in.
June57.4 °F78.6 °F5.98 in.
July60.6 °F81.6 °F4.74 in.
August58.2 °F79.8 °F4.5 in.
September49.3 °F73.5 °F3.88 in.
October37.5 °F60.4 °F3.04 in.
November25.8 °F44.8 °F2.29 in.
December15.3 °F31.7 °F1.67 in.
Annual35.9 °F56.4 °F39.52 in.

Climate Data for Delhi Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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