Mount Sterling Iowa Climate Data

Monthly Average Climate Data for Mount Sterling Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.3 °F33.3 °F1.46 in.
February19.7 °F37.9 °F1.76 in.
March30.3 °F50.7 °F2.26 in.
April41.1 °F63.9 °F3.71 in.
May52.5 °F73.8 °F5.4 in.
June62.2 °F83.1 °F4.84 in.
July66.1 °F86.8 °F4.17 in.
August63.9 °F85.4 °F3.75 in.
September55.3 °F78.6 °F3.73 in.
October43.7 °F65.6 °F3.02 in.
November32.1 °F50.6 °F2.24 in.
December22.0 °F38.2 °F1.72 in.
Annual42.1 °F62.3 °F38.06 in.

Climate Data for Mount Sterling Iowa

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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