Wiota, 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 60.2 °F (high). Annual precipitation averages 35.1 Inches. Wiota is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 11.5 °F | 30.4 °F | 0.85 in. |
| February | 15.6 °F | 35.3 °F | 1.17 in. |
| March | 26.5 °F | 48.5 °F | 1.91 in. |
| April | 37.3 °F | 61.6 °F | 3.57 in. |
| May | 49.7 °F | 71.8 °F | 5.36 in. |
| June | 60.1 °F | 81.5 °F | 4.82 in. |
| July | 63.8 °F | 84.9 °F | 4.02 in. |
| August | 61.0 °F | 83.2 °F | 4.08 in. |
| September | 51.8 °F | 76.9 °F | 3.42 in. |
| October | 39.6 °F | 64.3 °F | 2.84 in. |
| November | 27.1 °F | 48.3 °F | 1.68 in. |
| December | 17.0 °F | 35.3 °F | 1.35 in. |
| Annual | 38.4 °F | 60.2 °F | 35.07 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |