Milford, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38.3 °F (low) to 60.4 °F (high). Annual precipitation averages 47 Inches. Milford is located in USDA Plant Hardiness Zone 6b. 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 | 16.4 °F | 35.2 °F | 3.2 in. |
| February | 17.9 °F | 38.6 °F | 2.56 in. |
| March | 25.2 °F | 46.9 °F | 3.81 in. |
| April | 35.9 °F | 60.2 °F | 3.83 in. |
| May | 46.2 °F | 71.0 °F | 3.67 in. |
| June | 55.6 °F | 78.6 °F | 4.91 in. |
| July | 60.3 °F | 83.4 °F | 4.35 in. |
| August | 58.8 °F | 81.5 °F | 4.43 in. |
| September | 51.4 °F | 75.0 °F | 4.6 in. |
| October | 39.9 °F | 63.0 °F | 4.4 in. |
| November | 29.8 °F | 51.0 °F | 3.3 in. |
| December | 22.5 °F | 40.2 °F | 3.89 in. |
| Annual | 38.3 °F | 60.4 °F | 46.95 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |