Mystic Iowa Climate Data

Monthly Average Climate Data for Mystic Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.8 °F31.8 °F1.07 in.
February17.5 °F36.5 °F1.44 in.
March28.5 °F49.4 °F2.16 in.
April39.4 °F61.9 °F3.99 in.
May51.0 °F71.7 °F5.4 in.
June61.1 °F81.2 °F5.31 in.
July65.0 °F85.3 °F4.57 in.
August62.9 °F83.7 °F4.13 in.
September53.9 °F76.5 °F3.82 in.
October41.9 °F64.1 °F2.93 in.
November29.5 °F48.9 °F2.06 in.
December19.8 °F36.6 °F1.53 in.
Annual40.4 °F60.6 °F38.41 in.

Climate Data for Mystic Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation