Hebron, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 37.7 °F (low) to 57 °F (high). Annual precipitation averages 36.8 Inches. Hebron is located in USDA Plant Hardiness Zone 5b. 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 | 11.8 °F | 27.7 °F | 1.61 in. |
| February | 14.6 °F | 31.5 °F | 1.58 in. |
| March | 24.8 °F | 43.4 °F | 2.03 in. |
| April | 35.9 °F | 56.7 °F | 3.72 in. |
| May | 47.5 °F | 68.9 °F | 4.15 in. |
| June | 57.5 °F | 78.9 °F | 5.15 in. |
| July | 61.6 °F | 82.5 °F | 3.96 in. |
| August | 59.8 °F | 80.7 °F | 4.12 in. |
| September | 51.5 °F | 74.0 °F | 3.43 in. |
| October | 40.1 °F | 60.8 °F | 2.98 in. |
| November | 28.9 °F | 45.8 °F | 2.25 in. |
| December | 18.5 °F | 33.1 °F | 1.86 in. |
| Annual | 37.7 °F | 57 °F | 36.84 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |