Hatley, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.2 °F (low) to 52.4 °F (high). Annual precipitation averages 33.3 Inches. Hatley 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 | 4.9 °F | 22.4 °F | 1.16 in. |
| February | 6.5 °F | 26.7 °F | 1.06 in. |
| March | 17.8 °F | 38.4 °F | 1.69 in. |
| April | 30.6 °F | 52.4 °F | 3.05 in. |
| May | 43.1 °F | 65.4 °F | 3.82 in. |
| June | 53.0 °F | 74.8 °F | 4.56 in. |
| July | 56.8 °F | 79.0 °F | 3.77 in. |
| August | 54.9 °F | 77.1 °F | 3.81 in. |
| September | 46.8 °F | 69.4 °F | 3.8 in. |
| October | 35.2 °F | 55.5 °F | 3.05 in. |
| November | 24.2 °F | 40.5 °F | 1.93 in. |
| December | 12.1 °F | 27.7 °F | 1.55 in. |
| Annual | 32.2 °F | 52.4 °F | 33.25 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 | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |