Clearfield, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.1 °F (low) to 59.6 °F (high). Annual precipitation averages 44.1 Inches. Clearfield is located in USDA Plant Hardiness Zone 6a. 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 | 15.6 °F | 34.3 °F | 3.21 in. |
| February | 16.3 °F | 37.3 °F | 2.56 in. |
| March | 23.7 °F | 46.5 °F | 3.16 in. |
| April | 33.4 °F | 60.1 °F | 3.8 in. |
| May | 43.1 °F | 70.8 °F | 4.15 in. |
| June | 52.5 °F | 78.2 °F | 5.0 in. |
| July | 57.1 °F | 82.3 °F | 3.94 in. |
| August | 56.0 °F | 80.9 °F | 3.72 in. |
| September | 48.2 °F | 74.0 °F | 4.06 in. |
| October | 36.6 °F | 62.0 °F | 3.62 in. |
| November | 28.4 °F | 49.4 °F | 3.45 in. |
| December | 21.7 °F | 38.9 °F | 3.38 in. |
| Annual | 36.1 °F | 59.6 °F | 44.05 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 6a : -10°F to -5°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 |