Strong, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 39.4 °F (low) to 59.2 °F (high). Annual precipitation averages 49.6 Inches. Strong 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 | 17.7 °F | 34.5 °F | 3.6 in. |
| February | 19.1 °F | 37.2 °F | 2.69 in. |
| March | 26.7 °F | 45.9 °F | 3.9 in. |
| April | 37.5 °F | 59.0 °F | 4.18 in. |
| May | 47.3 °F | 69.5 °F | 4.28 in. |
| June | 56.2 °F | 77.4 °F | 4.8 in. |
| July | 60.5 °F | 82.5 °F | 4.6 in. |
| August | 58.7 °F | 80.6 °F | 4.32 in. |
| September | 51.9 °F | 73.8 °F | 5.17 in. |
| October | 41.1 °F | 61.6 °F | 4.62 in. |
| November | 31.7 °F | 49.5 °F | 3.63 in. |
| December | 24.0 °F | 39.1 °F | 3.79 in. |
| Annual | 39.4 °F | 59.2 °F | 49.58 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 100-125 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 | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |