Diamondhead Lake Iowa Climate Data

Monthly Average Climate Data for Diamondhead Lake Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.7 °F29.8 °F0.88 in.
February15.8 °F34.7 °F1.17 in.
March26.8 °F47.6 °F2.03 in.
April38.0 °F61.2 °F3.68 in.
May50.1 °F71.8 °F5.02 in.
June60.4 °F81.2 °F5.16 in.
July64.4 °F85.2 °F4.19 in.
August61.6 °F83.2 °F4.05 in.
September52.8 °F77.2 °F3.49 in.
October40.5 °F63.9 °F2.7 in.
November28.1 °F48.1 °F1.8 in.
December17.4 °F34.9 °F1.33 in.
Annual39 °F59.9 °F35.5 in.

Climate Data for Diamondhead Lake Iowa

Average First Frost DateOct. 1 - Oct. 10
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 5a : -20°F to -15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2025 plantmaps.com