Blue Grass Iowa Climate Data

Monthly Average Climate Data for Blue Grass Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.6 °F29.8 °F1.46 in.
February17.0 °F34.2 °F1.73 in.
March27.9 °F47.2 °F2.47 in.
April39.1 °F60.4 °F3.71 in.
May51.0 °F71.4 °F4.86 in.
June60.9 °F80.7 °F4.93 in.
July64.5 °F83.8 °F4.19 in.
August62.3 °F82.0 °F4.01 in.
September54.1 °F76.2 °F3.56 in.
October42.2 °F63.2 °F2.87 in.
November30.2 °F48.3 °F2.25 in.
December19.6 °F35.1 °F1.93 in.
Annual40.2 °F59.4 °F37.97 in.

Climate Data for Blue Grass 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