Poy Sippi, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.8 °F (low) to 55.4 °F (high). Annual precipitation averages 33.7 Inches. Poy Sippi is located in USDA Plant Hardiness Zone 5a. 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 | 9.2 °F | 25.8 °F | 1.33 in. |
| February | 11.5 °F | 29.8 °F | 1.13 in. |
| March | 22.2 °F | 41.3 °F | 1.95 in. |
| April | 34.0 °F | 55.0 °F | 3.59 in. |
| May | 46.2 °F | 67.4 °F | 4.04 in. |
| June | 56.4 °F | 77.3 °F | 4.57 in. |
| July | 60.4 °F | 81.9 °F | 3.62 in. |
| August | 58.4 °F | 79.8 °F | 3.77 in. |
| September | 49.9 °F | 72.3 °F | 3.3 in. |
| October | 38.1 °F | 58.6 °F | 2.76 in. |
| November | 27.1 °F | 44.0 °F | 1.89 in. |
| December | 16.1 °F | 31.2 °F | 1.73 in. |
| Annual | 35.8 °F | 55.4 °F | 33.68 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 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |