Shafer, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.6 °F (low) to 54.4 °F (high). Annual precipitation averages 32 Inches. Shafer is located in USDA Plant Hardiness Zone 4b. 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 | 3.7 °F | 22.8 °F | 0.89 in. |
| February | 7.0 °F | 28.1 °F | 0.9 in. |
| March | 19.5 °F | 40.5 °F | 1.38 in. |
| April | 32.6 °F | 55.2 °F | 2.85 in. |
| May | 45.3 °F | 68.2 °F | 4.03 in. |
| June | 55.4 °F | 77.6 °F | 4.34 in. |
| July | 59.8 °F | 81.7 °F | 4.38 in. |
| August | 57.5 °F | 79.7 °F | 4.0 in. |
| September | 49.4 °F | 72.0 °F | 3.51 in. |
| October | 37.0 °F | 57.8 °F | 2.93 in. |
| November | 24.4 °F | 41.5 °F | 1.62 in. |
| December | 11.5 °F | 27.9 °F | 1.18 in. |
| Annual | 33.6 °F | 54.4 °F | 32.01 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 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |