Mather, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.1 °F (low) to 62.6 °F (high). Annual precipitation averages 42.6 Inches. Mather 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.8 °F | 38.3 °F | 3.25 in. |
| February | 22.0 °F | 41.2 °F | 2.76 in. |
| March | 28.9 °F | 50.7 °F | 3.49 in. |
| April | 38.6 °F | 63.8 °F | 3.44 in. |
| May | 48.9 °F | 72.8 °F | 4.4 in. |
| June | 57.8 °F | 80.1 °F | 4.39 in. |
| July | 61.9 °F | 83.9 °F | 4.49 in. |
| August | 60.3 °F | 82.9 °F | 3.8 in. |
| September | 53.4 °F | 76.9 °F | 3.39 in. |
| October | 41.8 °F | 65.1 °F | 2.93 in. |
| November | 32.5 °F | 52.8 °F | 3.02 in. |
| December | 25.8 °F | 42.5 °F | 3.22 in. |
| Annual | 41.1 °F | 62.6 °F | 42.58 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |