Oxford, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.2 °F (low) to 56.3 °F (high). Annual precipitation averages 35.9 Inches. Oxford 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 | 8.2 °F | 26.4 °F | 1.33 in. |
| February | 11.1 °F | 30.9 °F | 1.25 in. |
| March | 21.6 °F | 43.0 °F | 1.95 in. |
| April | 33.2 °F | 56.6 °F | 3.74 in. |
| May | 46.0 °F | 68.8 °F | 4.25 in. |
| June | 56.0 °F | 78.2 °F | 5.12 in. |
| July | 59.9 °F | 82.5 °F | 4.22 in. |
| August | 57.7 °F | 80.1 °F | 4.04 in. |
| September | 49.3 °F | 72.9 °F | 3.51 in. |
| October | 37.6 °F | 59.6 °F | 2.81 in. |
| November | 26.1 °F | 44.5 °F | 2.0 in. |
| December | 15.6 °F | 31.7 °F | 1.65 in. |
| Annual | 35.2 °F | 56.3 °F | 35.87 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 |