Trevose, Pennsylvania has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.5 °C (low) to 17.7 °C (high). Annual precipitation averages 1242.3 Millimeters. Trevose is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.3 °C | 4.6 °C | 90.17 mm |
| February | -3.5 °C | 6.1 °C | 69.09 mm |
| March | 0.4 °C | 10.5 °C | 111.25 mm |
| April | 6 °C | 17.3 °C | 94.23 mm |
| May | 11.5 °C | 22.6 °C | 107.44 mm |
| June | 16.8 °C | 27.6 °C | 111.51 mm |
| July | 19.8 °C | 30.2 °C | 122.43 mm |
| August | 18.8 °C | 29.2 °C | 130.05 mm |
| September | 14.7 °C | 25.7 °C | 108.46 mm |
| October | 8.1 °C | 18.9 °C | 101.85 mm |
| November | 2.7 °C | 12.8 °C | 84.33 mm |
| December | -1.6 °C | 7.2 °C | 111.51 mm |
| Annual | 7.5 °C | 17.7 °C | 1242.32 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |