Ripon, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 36.3 °F (low) to 54.6 °F (high). Annual precipitation averages 32.6 Inches. Ripon is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9.5 °F | 25.3 °F | 1.24 in. |
| February | 12.0 °F | 29.0 °F | 1.13 in. |
| March | 23.0 °F | 40.6 °F | 1.8 in. |
| April | 34.4 °F | 54.2 °F | 3.3 in. |
| May | 46.5 °F | 66.7 °F | 3.76 in. |
| June | 56.5 °F | 76.5 °F | 4.88 in. |
| July | 60.5 °F | 80.4 °F | 3.85 in. |
| August | 58.7 °F | 78.6 °F | 3.5 in. |
| September | 50.8 °F | 71.5 °F | 3.07 in. |
| October | 39.2 °F | 58.1 °F | 2.69 in. |
| November | 27.6 °F | 43.7 °F | 1.94 in. |
| December | 16.5 °F | 30.9 °F | 1.46 in. |
| Annual | 36.3 °F | 54.6 °F | 32.62 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |