Edgar, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.8 °F (low) to 52.8 °F (high). Annual precipitation averages 32.7 Inches. Edgar 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 Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.0 °F | 22.5 °F | 1.06 in. |
| February | 7.0 °F | 26.9 °F | 0.95 in. |
| March | 18.5 °F | 38.8 °F | 1.58 in. |
| April | 31.5 °F | 52.9 °F | 2.91 in. |
| May | 44.1 °F | 65.9 °F | 3.68 in. |
| June | 54.1 °F | 75.1 °F | 4.67 in. |
| July | 57.8 °F | 79.5 °F | 3.71 in. |
| August | 55.7 °F | 77.4 °F | 4.04 in. |
| September | 47.5 °F | 69.8 °F | 3.86 in. |
| October | 35.8 °F | 55.9 °F | 3.02 in. |
| November | 24.5 °F | 40.7 °F | 1.85 in. |
| December | 12.4 °F | 27.7 °F | 1.39 in. |
| Annual | 32.8 °F | 52.8 °F | 32.72 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 4b : -25°F to -20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |