Magnolia, Minnesota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 34.6 °F (low) to 55.3 °F (high). Annual precipitation averages 29.8 Inches. Magnolia 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 | 6.2 °F | 24.0 °F | 0.76 in. |
| February | 10.3 °F | 28.6 °F | 0.94 in. |
| March | 21.9 °F | 40.9 °F | 1.53 in. |
| April | 33.4 °F | 56.2 °F | 2.85 in. |
| May | 46.1 °F | 68.3 °F | 3.89 in. |
| June | 57.6 °F | 78.6 °F | 4.76 in. |
| July | 61.1 °F | 82.4 °F | 3.51 in. |
| August | 58.3 °F | 80.2 °F | 3.27 in. |
| September | 49.4 °F | 73.7 °F | 3.23 in. |
| October | 36.2 °F | 59.4 °F | 2.48 in. |
| November | 23.2 °F | 42.6 °F | 1.44 in. |
| December | 11.9 °F | 28.7 °F | 1.13 in. |
| Annual | 34.6 °F | 55.3 °F | 29.79 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 4b : -25°F to -20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |