Keota, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.4 °C (low) to 15.6 °C (high). Annual precipitation averages 960.4 Millimeters. Keota is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.3 °C | -0.9 °C | 32.26 mm |
| February | -8.3 °C | 1.7 °C | 38.61 mm |
| March | -2.4 °C | 8.8 °C | 57.91 mm |
| April | 3.8 °C | 16.4 °C | 94.49 mm |
| May | 10.6 °C | 22.2 °C | 128.52 mm |
| June | 16.3 °C | 27.4 °C | 131.83 mm |
| July | 18.1 °C | 29.4 °C | 105.16 mm |
| August | 16.6 °C | 28.4 °C | 111 mm |
| September | 11.6 °C | 24.9 °C | 88.9 mm |
| October | 5.1 °C | 17.8 °C | 73.91 mm |
| November | -1.4 °C | 9.2 °C | 55.63 mm |
| December | -7.1 °C | 2 °C | 42.16 mm |
| Annual | 4.4 °C | 15.6 °C | 960.38 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |