Buckeye, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 36.8 °F (low) to 57.2 °F (high). Annual precipitation averages 36 Inches. Buckeye is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 8.9 °F | 26.1 °F | 0.85 in. |
| February | 12.9 °F | 30.7 °F | 0.99 in. |
| March | 24.8 °F | 43.7 °F | 2.06 in. |
| April | 35.8 °F | 58.3 °F | 3.72 in. |
| May | 48.6 °F | 70.3 °F | 4.98 in. |
| June | 59.2 °F | 80.1 °F | 5.8 in. |
| July | 62.2 °F | 82.6 °F | 4.24 in. |
| August | 59.5 °F | 80.8 °F | 4.27 in. |
| September | 50.4 °F | 74.7 °F | 3.32 in. |
| October | 38.2 °F | 61.7 °F | 2.61 in. |
| November | 26.0 °F | 45.3 °F | 1.78 in. |
| December | 15.3 °F | 31.8 °F | 1.39 in. |
| Annual | 36.8 °F | 57.2 °F | 36.01 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |