Donnellson Iowa Climate Data

Monthly Average Climate Data for Donnellson Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.0 °F33.0 °F1.53 in.
February19.6 °F37.7 °F1.88 in.
March29.9 °F50.3 °F2.53 in.
April40.9 °F63.3 °F3.75 in.
May52.7 °F73.5 °F5.11 in.
June62.3 °F82.9 °F4.97 in.
July66.0 °F86.6 °F4.22 in.
August63.8 °F85.0 °F3.84 in.
September55.3 °F78.4 °F3.82 in.
October43.6 °F65.4 °F3.08 in.
November32.0 °F50.5 °F2.47 in.
December21.9 °F38.0 °F1.94 in.
Annual42 °F62.1 °F39.14 in.

Climate Data for Donnellson 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 6a : -10°F to -5°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