Superior Iowa Climate Data

Monthly Average Climate Data for Superior Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January6.6 °F23.5 °F0.78 in.
February10.1 °F27.7 °F0.83 in.
March22.2 °F40.4 °F1.68 in.
April34.2 °F56.0 °F3.29 in.
May46.9 °F68.4 °F4.5 in.
June57.8 °F78.5 °F4.83 in.
July61.8 °F82.7 °F3.67 in.
August58.8 °F79.8 °F3.67 in.
September50.5 °F74.1 °F3.13 in.
October37.1 °F59.5 °F2.35 in.
November24.6 °F42.9 °F1.31 in.
December12.4 °F28.6 °F0.95 in.
Annual35.3 °F55.2 °F30.99 in.

Climate Data for Superior Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
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 ConditionsSevere Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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