Atkins, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 38.4 °F (low) to 58.6 °F (high). Annual precipitation averages 37.8 Inches. Atkins 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 | 11.4 °F | 28.1 °F | 1.15 in. |
| February | 15.1 °F | 32.7 °F | 1.32 in. |
| March | 26.3 °F | 45.9 °F | 2.12 in. |
| April | 37.5 °F | 60.2 °F | 3.78 in. |
| May | 49.5 °F | 71.2 °F | 4.67 in. |
| June | 59.9 °F | 80.5 °F | 5.53 in. |
| July | 63.2 °F | 83.6 °F | 4.41 in. |
| August | 60.6 °F | 81.8 °F | 4.34 in. |
| September | 52.0 °F | 75.7 °F | 3.73 in. |
| October | 40.0 °F | 62.6 °F | 2.92 in. |
| November | 28.0 °F | 46.9 °F | 2.2 in. |
| December | 17.6 °F | 33.7 °F | 1.62 in. |
| Annual | 38.4 °F | 58.6 °F | 37.79 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |