Ambridge, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6 °C (low) to 16.6 °C (high). Annual precipitation averages 1021.3 Millimeters. Ambridge 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 | -5.6 °C | 2.8 °C | 82.55 mm |
| February | -4.9 °C | 4.3 °C | 64.52 mm |
| March | -1.1 °C | 9.4 °C | 80.26 mm |
| April | 4.6 °C | 17 °C | 90.17 mm |
| May | 10.3 °C | 22.3 °C | 98.3 mm |
| June | 15.2 °C | 27.1 °C | 106.43 mm |
| July | 17.6 °C | 29.1 °C | 101.85 mm |
| August | 16.9 °C | 28.3 °C | 81.28 mm |
| September | 13.2 °C | 24.7 °C | 90.42 mm |
| October | 7 °C | 17.8 °C | 74.68 mm |
| November | 1.4 °C | 10.9 °C | 73.15 mm |
| December | -2.6 °C | 5.2 °C | 77.72 mm |
| Annual | 6 °C | 16.6 °C | 1021.33 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 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |