Garwin Iowa Climate Data

Monthly Average Climate Data for Garwin Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.7 °F27.5 °F1.0 in.
February14.6 °F32.4 °F1.13 in.
March25.7 °F45.5 °F2.01 in.
April36.9 °F59.7 °F3.7 in.
May49.4 °F70.8 °F4.85 in.
June60.0 °F80.5 °F5.61 in.
July63.3 °F83.8 °F4.25 in.
August60.5 °F81.8 °F4.17 in.
September51.8 °F75.7 °F3.45 in.
October39.8 °F62.5 °F2.72 in.
November27.5 °F46.5 °F2.06 in.
December17.0 °F33.3 °F1.43 in.
Annual38.1 °F58.3 °F36.38 in.

Climate Data for Garwin 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 ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation