New Vienna Iowa Climate Data

Monthly Average Climate Data for New Vienna Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January8.9 °F26.0 °F1.24 in.
February12.6 °F30.5 °F1.36 in.
March24.3 °F43.5 °F2.11 in.
April35.5 °F57.5 °F3.89 in.
May47.2 °F68.9 °F4.65 in.
June57.5 °F78.5 °F5.84 in.
July61.1 °F81.6 °F4.81 in.
August58.7 °F79.9 °F4.15 in.
September50.0 °F73.3 °F3.81 in.
October38.1 °F60.4 °F2.98 in.
November26.4 °F44.8 °F2.23 in.
December15.8 °F31.9 °F1.67 in.
Annual36.3 °F56.4 °F38.74 in.

Climate Data for New Vienna 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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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