Garner Iowa Climate Data

Monthly Average Climate Data for Garner Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.2 °F24.0 °F0.88 in.
February11.4 °F28.7 °F0.99 in.
March23.6 °F41.3 °F2.01 in.
April35.0 °F56.6 °F3.81 in.
May47.6 °F68.9 °F4.9 in.
June58.4 °F78.9 °F5.35 in.
July61.6 °F81.9 °F4.31 in.
August58.8 °F79.6 °F3.91 in.
September49.9 °F73.5 °F3.18 in.
October37.5 °F60.2 °F2.36 in.
November25.4 °F43.5 °F1.65 in.
December13.9 °F29.8 °F1.29 in.
Annual35.9 °F55.6 °F34.64 in.

Climate Data for Garner Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 1 - May 10
Average Days With Frost150-180 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
2024 plantmaps.com