Spicer, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.6 °F (low) to 53.3 °F (high). Annual precipitation averages 30.1 Inches. Spicer 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 | 3.0 °F | 20.8 °F | 0.79 in. |
| February | 6.4 °F | 25.6 °F | 0.85 in. |
| March | 19.3 °F | 38.2 °F | 1.56 in. |
| April | 32.9 °F | 54.4 °F | 2.65 in. |
| May | 46.0 °F | 67.9 °F | 3.45 in. |
| June | 56.8 °F | 77.4 °F | 4.84 in. |
| July | 61.0 °F | 81.4 °F | 4.13 in. |
| August | 58.2 °F | 79.1 °F | 4.02 in. |
| September | 49.7 °F | 72.1 °F | 2.98 in. |
| October | 36.6 °F | 57.2 °F | 2.51 in. |
| November | 23.3 °F | 39.9 °F | 1.39 in. |
| December | 10.3 °F | 26.1 °F | 0.97 in. |
| Annual | 33.6 °F | 53.3 °F | 30.14 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 | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |