Goodell, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 35.9 °F (low) to 55.9 °F (high). Annual precipitation averages 34.9 Inches. Goodell 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 | 7.3 °F | 24.5 °F | 0.85 in. |
| February | 11.6 °F | 29.1 °F | 1.01 in. |
| March | 23.7 °F | 41.8 °F | 2.07 in. |
| April | 35.1 °F | 57.0 °F | 3.86 in. |
| May | 47.9 °F | 69.1 °F | 4.96 in. |
| June | 58.5 °F | 79.1 °F | 5.5 in. |
| July | 61.6 °F | 82.0 °F | 4.25 in. |
| August | 58.7 °F | 79.7 °F | 4.04 in. |
| September | 49.8 °F | 73.8 °F | 3.06 in. |
| October | 37.5 °F | 60.4 °F | 2.36 in. |
| November | 25.5 °F | 43.8 °F | 1.68 in. |
| December | 13.9 °F | 30.0 °F | 1.3 in. |
| Annual | 35.9 °F | 55.9 °F | 34.94 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |