Spencer Iowa Climate Data

Monthly Average Climate Data for Spencer Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.3 °F25.0 °F0.69 in.
February11.3 °F29.2 °F0.8 in.
March23.3 °F42.1 °F1.58 in.
April35.1 °F57.6 °F3.4 in.
May47.8 °F69.5 °F4.25 in.
June58.6 °F79.9 °F4.61 in.
July62.1 °F83.6 °F3.71 in.
August59.3 °F81.1 °F3.7 in.
September50.5 °F75.0 °F3.18 in.
October37.4 °F60.9 °F2.35 in.
November24.5 °F44.5 °F1.42 in.
December13.4 °F30.3 °F0.92 in.
Annual35.9 °F56.6 °F30.61 in.

Climate Data for Spencer Iowa

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 1 - May 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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