Odessa, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.1 °F (low) to 54.3 °F (high). Annual precipitation averages 25.7 Inches. Odessa is located in USDA Plant Hardiness Zone 4b. 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 | 2.6 °F | 22.0 °F | 0.7 in. |
| February | 5.7 °F | 26.1 °F | 0.71 in. |
| March | 19.0 °F | 38.6 °F | 1.25 in. |
| April | 32.8 °F | 55.0 °F | 2.42 in. |
| May | 46.1 °F | 68.4 °F | 2.93 in. |
| June | 57.3 °F | 78.1 °F | 3.89 in. |
| July | 60.6 °F | 82.0 °F | 4.0 in. |
| August | 57.5 °F | 80.3 °F | 3.21 in. |
| September | 48.5 °F | 73.3 °F | 2.51 in. |
| October | 35.4 °F | 58.4 °F | 2.3 in. |
| November | 22.3 °F | 42.2 °F | 1.04 in. |
| December | 9.9 °F | 27.6 °F | 0.73 in. |
| Annual | 33.1 °F | 54.3 °F | 25.69 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 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |