Swea City Iowa Climate Data

Monthly Average Climate Data for Swea City Iowa

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-13.8 °C-4.4 °C20.07 mm
February-11.5 °C-2 °C23.11 mm
March-4.7 °C5.1 °C44.96 mm
April1.9 °C13.9 °C86.36 mm
May8.9 °C21 °C112.52 mm
June15.1 °C26.6 °C125.73 mm
July16.8 °C28 °C105.16 mm
August15.4 °C26.8 °C96.27 mm
September10.7 °C23.7 °C81.28 mm
October3.3 °C15.8 °C60.96 mm
November-3.8 °C6.3 °C35.81 mm
December-10.2 °C-1.5 °C30.73 mm
Annual2.3 °C13.3 °C822.96 mm

Climate Data for Swea City 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 : -28.9°C to -26.1°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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