Burlington, Pennsylvania has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.7 °F (low) to 58.7 °F (high). Annual precipitation averages 37.8 Inches. Burlington 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.4 °F | 33.4 °F | 2.44 in. |
| February | 16.0 °F | 35.9 °F | 1.92 in. |
| March | 23.2 °F | 44.3 °F | 2.94 in. |
| April | 33.3 °F | 58.0 °F | 3.36 in. |
| May | 44.5 °F | 69.8 °F | 3.29 in. |
| June | 53.7 °F | 77.9 °F | 3.89 in. |
| July | 57.8 °F | 82.3 °F | 3.58 in. |
| August | 56.6 °F | 80.8 °F | 3.59 in. |
| September | 49.5 °F | 73.8 °F | 3.92 in. |
| October | 38.5 °F | 61.2 °F | 3.55 in. |
| November | 29.5 °F | 48.8 °F | 2.66 in. |
| December | 22.2 °F | 38.2 °F | 2.64 in. |
| Annual | 36.7 °F | 58.7 °F | 37.78 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |