Benton, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 39.7 °F (low) to 60.4 °F (high). Annual precipitation averages 46.4 Inches. Benton 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 | 18.3 °F | 35.4 °F | 3.31 in. |
| February | 19.7 °F | 38.1 °F | 2.46 in. |
| March | 27.1 °F | 46.8 °F | 3.17 in. |
| April | 37.4 °F | 60.3 °F | 3.97 in. |
| May | 47.5 °F | 71.2 °F | 4.24 in. |
| June | 56.6 °F | 78.9 °F | 4.47 in. |
| July | 61.0 °F | 83.4 °F | 4.67 in. |
| August | 59.5 °F | 81.6 °F | 4.43 in. |
| September | 52.2 °F | 74.9 °F | 4.79 in. |
| October | 41.0 °F | 62.8 °F | 4.07 in. |
| November | 32.0 °F | 50.8 °F | 3.22 in. |
| December | 24.4 °F | 40.2 °F | 3.56 in. |
| Annual | 39.7 °F | 60.4 °F | 46.36 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 | Dfb - Humid Continental Mild Summer, Wet All Year |