Starrucca, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.8 °C (low) to 13.2 °C (high). Annual precipitation averages 1198.9 Millimeters. Starrucca is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.6 °C | -0.8 °C | 78.99 mm |
| February | -10.1 °C | 0.7 °C | 67.82 mm |
| March | -6.2 °C | 5.2 °C | 82.8 mm |
| April | 0.1 °C | 12.7 °C | 95.76 mm |
| May | 6.2 °C | 19.2 °C | 113.54 mm |
| June | 11.3 °C | 23.7 °C | 132.33 mm |
| July | 13.8 °C | 26.1 °C | 122.43 mm |
| August | 13.1 °C | 25.2 °C | 103.12 mm |
| September | 9.1 °C | 21.5 °C | 116.08 mm |
| October | 3.1 °C | 14.7 °C | 114.05 mm |
| November | -2.1 °C | 7.9 °C | 86.36 mm |
| December | -6.6 °C | 1.9 °C | 85.6 mm |
| Annual | 1.8 °C | 13.2 °C | 1198.88 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |