Climax, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 30.2 °F (low) to 50 °F (high). Annual precipitation averages 23.6 Inches. Climax is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.3 °F | 15.1 °F | 0.77 in. |
| February | 1.3 °F | 20.0 °F | 0.68 in. |
| March | 15.4 °F | 33.0 °F | 0.97 in. |
| April | 30.6 °F | 51.0 °F | 1.31 in. |
| May | 43.1 °F | 65.5 °F | 2.9 in. |
| June | 54.9 °F | 75.2 °F | 4.1 in. |
| July | 58.4 °F | 79.8 °F | 3.48 in. |
| August | 55.1 °F | 79.0 °F | 2.74 in. |
| September | 46.3 °F | 70.1 °F | 2.82 in. |
| October | 34.1 °F | 54.2 °F | 2.03 in. |
| November | 19.7 °F | 36.5 °F | 0.89 in. |
| December | 6.0 °F | 21.1 °F | 0.91 in. |
| Annual | 30.2 °F | 50 °F | 23.6 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |