Lynnville Iowa Climate Data

Monthly Average Climate Data for Lynnville Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.0 °F29.5 °F1.05 in.
February15.7 °F34.2 °F1.36 in.
March26.7 °F47.4 °F2.11 in.
April38.4 °F60.9 °F3.9 in.
May50.6 °F71.3 °F4.97 in.
June61.2 °F81.2 °F5.37 in.
July64.0 °F84.8 °F4.29 in.
August62.0 °F82.8 °F4.38 in.
September52.9 °F76.2 °F3.6 in.
October40.5 °F63.5 °F2.76 in.
November28.8 °F47.8 °F2.03 in.
December18.1 °F35.1 °F1.49 in.
Annual39.2 °F59.6 °F37.31 in.

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