Denmark Iowa Climate Data

Monthly Average Climate Data for Denmark Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.4 °F32.8 °F1.67 in.
February19.9 °F37.5 °F1.87 in.
March30.1 °F50.1 °F2.57 in.
April41.1 °F62.7 °F3.75 in.
May53.0 °F73.1 °F5.28 in.
June62.6 °F82.2 °F4.81 in.
July66.2 °F85.6 °F4.18 in.
August64.0 °F84.1 °F3.8 in.
September55.5 °F78.1 °F3.59 in.
October43.8 °F65.4 °F3.0 in.
November32.1 °F50.4 °F2.53 in.
December22.3 °F38.0 °F1.92 in.
Annual42.3 °F61.7 °F38.97 in.

Climate Data for Denmark Iowa

Average First Frost DateOct. 21 - Oct. 31
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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