Starbrick, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.5 °F (low) to 58.2 °F (high). Annual precipitation averages 47 Inches. Starbrick is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.7 °F | 32.5 °F | 3.55 in. |
| February | 16.9 °F | 35.0 °F | 2.67 in. |
| March | 23.7 °F | 44.0 °F | 3.25 in. |
| April | 34.2 °F | 58.2 °F | 4.12 in. |
| May | 44.9 °F | 69.8 °F | 4.19 in. |
| June | 53.9 °F | 77.3 °F | 4.64 in. |
| July | 57.9 °F | 81.6 °F | 4.91 in. |
| August | 56.9 °F | 80.3 °F | 4.11 in. |
| September | 50.4 °F | 73.8 °F | 4.03 in. |
| October | 40.0 °F | 61.1 °F | 4.06 in. |
| November | 31.1 °F | 47.9 °F | 3.68 in. |
| December | 23.6 °F | 37.1 °F | 3.82 in. |
| Annual | 37.5 °F | 58.2 °F | 47.03 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |