Oxford, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.3 °F (low) to 55.5 °F (high). Annual precipitation averages 49.3 Inches. Oxford 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 | 9.9 °F | 29.4 °F | 3.37 in. |
| February | 11.0 °F | 32.4 °F | 3.3 in. |
| March | 21.1 °F | 41.0 °F | 3.8 in. |
| April | 32.6 °F | 53.5 °F | 4.33 in. |
| May | 43.6 °F | 65.7 °F | 3.74 in. |
| June | 53.6 °F | 74.0 °F | 4.87 in. |
| July | 59.2 °F | 80.0 °F | 4.03 in. |
| August | 57.6 °F | 78.9 °F | 3.81 in. |
| September | 49.9 °F | 71.3 °F | 3.82 in. |
| October | 38.4 °F | 58.1 °F | 5.5 in. |
| November | 28.6 °F | 46.0 °F | 4.31 in. |
| December | 17.9 °F | 35.2 °F | 4.4 in. |
| Annual | 35.3 °F | 55.5 °F | 49.28 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 |