Catawissa, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.9 °C (low) to 16.4 °C (high). Annual precipitation averages 1147.1 Millimeters. Catawissa is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.8 °C | 2.3 °C | 84.07 mm |
| February | -6.1 °C | 3.8 °C | 63.25 mm |
| March | -2.1 °C | 9.1 °C | 89.41 mm |
| April | 3.5 °C | 16.7 °C | 101.09 mm |
| May | 9.3 °C | 22.4 °C | 100.08 mm |
| June | 14.5 °C | 26.9 °C | 110.24 mm |
| July | 16.8 °C | 29.4 °C | 108.97 mm |
| August | 15.9 °C | 28.3 °C | 103.12 mm |
| September | 11.8 °C | 24.6 °C | 116.08 mm |
| October | 5.6 °C | 17.7 °C | 103.12 mm |
| November | 0.3 °C | 10.9 °C | 81.28 mm |
| December | -3.7 °C | 4.8 °C | 86.36 mm |
| Annual | 4.9 °C | 16.4 °C | 1147.07 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |