Easton, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.6 °C (low) to 17.2 °C (high). Annual precipitation averages 1279.9 Millimeters. Easton 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 | -6.1 °C | 3.5 °C | 90.93 mm |
| February | -5.3 °C | 5.2 °C | 73.15 mm |
| March | -1.4 °C | 9.9 °C | 102.11 mm |
| April | 4.1 °C | 17 °C | 103.38 mm |
| May | 9.8 °C | 22.6 °C | 108.97 mm |
| June | 15.1 °C | 27.3 °C | 121.41 mm |
| July | 17.7 °C | 29.9 °C | 121.41 mm |
| August | 16.6 °C | 28.8 °C | 126.75 mm |
| September | 12.5 °C | 25.2 °C | 119.89 mm |
| October | 6.2 °C | 18.7 °C | 114.81 mm |
| November | 0.9 °C | 12.3 °C | 88.9 mm |
| December | -3.1 °C | 6.2 °C | 108.2 mm |
| Annual | 5.6 °C | 17.2 °C | 1279.91 mm |
| 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 : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |