Neenah, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.6 °F (low) to 54.9 °F (high). Annual precipitation averages 33.1 Inches. Neenah 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 | 10.3 °F | 25.5 °F | 1.36 in. |
| February | 12.5 °F | 29.1 °F | 1.15 in. |
| March | 22.6 °F | 40.5 °F | 1.86 in. |
| April | 34.5 °F | 54.0 °F | 3.24 in. |
| May | 46.4 °F | 66.9 °F | 3.76 in. |
| June | 56.7 °F | 76.7 °F | 4.64 in. |
| July | 61.0 °F | 81.2 °F | 3.78 in. |
| August | 59.3 °F | 79.1 °F | 3.59 in. |
| September | 51.2 °F | 72.1 °F | 3.2 in. |
| October | 39.5 °F | 58.3 °F | 2.85 in. |
| November | 28.2 °F | 43.8 °F | 1.95 in. |
| December | 17.2 °F | 31.1 °F | 1.69 in. |
| Annual | 36.6 °F | 54.9 °F | 33.07 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 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 | Dfb - Humid Continental Mild Summer, Wet All Year |