Sheldon, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.3 °F (low) to 53.2 °F (high). Annual precipitation averages 31.9 Inches. Sheldon is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.1 °F | 22.5 °F | 1.13 in. |
| February | 5.8 °F | 27.5 °F | 0.97 in. |
| March | 18.3 °F | 39.6 °F | 1.44 in. |
| April | 31.6 °F | 53.7 °F | 2.86 in. |
| May | 43.7 °F | 67.0 °F | 3.73 in. |
| June | 53.7 °F | 75.7 °F | 4.61 in. |
| July | 57.8 °F | 79.8 °F | 3.54 in. |
| August | 55.3 °F | 77.9 °F | 4.04 in. |
| September | 47.4 °F | 70.2 °F | 3.5 in. |
| October | 35.7 °F | 56.4 °F | 3.0 in. |
| November | 23.9 °F | 40.3 °F | 1.8 in. |
| December | 11.3 °F | 27.7 °F | 1.28 in. |
| Annual | 32.3 °F | 53.2 °F | 31.9 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |