Doylestown, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.9 °F (low) to 63 °F (high). Annual precipitation averages 48 Inches. Doylestown is located in USDA Plant Hardiness Zone 7a. 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 | 21.8 °F | 38.9 °F | 3.41 in. |
| February | 23.3 °F | 41.7 °F | 2.82 in. |
| March | 30.3 °F | 50.0 °F | 4.09 in. |
| April | 40.5 °F | 62.3 °F | 3.74 in. |
| May | 50.3 °F | 71.9 °F | 4.24 in. |
| June | 59.6 °F | 80.9 °F | 4.36 in. |
| July | 64.7 °F | 85.6 °F | 4.88 in. |
| August | 63.0 °F | 83.8 °F | 4.46 in. |
| September | 55.9 °F | 77.3 °F | 4.27 in. |
| October | 44.1 °F | 65.2 °F | 4.14 in. |
| November | 34.1 °F | 54.1 °F | 3.31 in. |
| December | 27.1 °F | 43.9 °F | 4.32 in. |
| Annual | 42.9 °F | 63 °F | 48.04 in. |
| 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |