Kiester, Minnesota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 35.6 °F (low) to 55 °F (high). Annual precipitation averages 34.6 Inches. Kiester 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 | 6.3 °F | 23.3 °F | 0.8 in. |
| February | 10.4 °F | 27.8 °F | 0.91 in. |
| March | 23.0 °F | 40.4 °F | 1.82 in. |
| April | 34.8 °F | 56.1 °F | 3.53 in. |
| May | 47.3 °F | 68.5 °F | 4.88 in. |
| June | 58.3 °F | 78.4 °F | 5.34 in. |
| July | 61.6 °F | 81.6 °F | 4.63 in. |
| August | 58.9 °F | 79.3 °F | 4.07 in. |
| September | 50.2 °F | 73.2 °F | 3.55 in. |
| October | 37.4 °F | 59.6 °F | 2.36 in. |
| November | 25.1 °F | 43.0 °F | 1.53 in. |
| December | 13.3 °F | 29.0 °F | 1.18 in. |
| Annual | 35.6 °F | 55 °F | 34.6 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 | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |