Terril Iowa Climate Data

Monthly Average Climate Data for Terril Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.0 °F23.9 °F0.74 in.
February10.8 °F28.2 °F0.82 in.
March22.7 °F41.0 °F1.63 in.
April34.9 °F56.5 °F3.31 in.
May47.4 °F68.8 °F4.44 in.
June58.2 °F78.9 °F4.8 in.
July62.1 °F82.9 °F3.67 in.
August59.2 °F80.1 °F3.69 in.
September50.9 °F74.2 °F3.16 in.
October37.7 °F60.0 °F2.34 in.
November24.9 °F43.3 °F1.35 in.
December13.0 °F29.1 °F0.95 in.
Annual35.7 °F55.6 °F30.9 in.

Climate Data for Terril Iowa

Average First Frost DateOct. 1 - Oct. 10
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 ConditionsSevere Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
2024 plantmaps.com