Treynor Iowa Climate Data

Monthly Average Climate Data for Treynor Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.4 °F31.9 °F0.79 in.
February17.3 °F36.7 °F1.0 in.
March27.9 °F49.7 °F1.82 in.
April38.9 °F62.3 °F3.41 in.
May51.1 °F72.6 °F5.26 in.
June61.7 °F82.4 °F5.11 in.
July65.8 °F85.9 °F3.75 in.
August63.0 °F84.0 °F3.97 in.
September53.7 °F77.7 °F3.23 in.
October41.3 °F64.8 °F2.72 in.
November28.7 °F48.9 °F1.54 in.
December18.8 °F36.4 °F1.31 in.
Annual40.1 °F61.1 °F33.91 in.

Climate Data for Treynor Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°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
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