Ambler, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.9 °F (low) to 64.1 °F (high). Annual precipitation averages 48 Inches. Ambler 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.8 °F | 40.1 °F | 3.38 in. |
| February | 25.4 °F | 42.9 °F | 2.8 in. |
| March | 32.3 °F | 51.1 °F | 4.11 in. |
| April | 42.4 °F | 63.3 °F | 3.74 in. |
| May | 52.3 °F | 72.9 °F | 4.09 in. |
| June | 61.7 °F | 82.0 °F | 4.39 in. |
| July | 66.9 °F | 86.6 °F | 4.69 in. |
| August | 65.2 °F | 84.9 °F | 4.77 in. |
| September | 57.9 °F | 78.3 °F | 4.4 in. |
| October | 46.1 °F | 66.3 °F | 4.06 in. |
| November | 36.1 °F | 55.2 °F | 3.24 in. |
| December | 29.0 °F | 45.1 °F | 4.35 in. |
| Annual | 44.9 °F | 64.1 °F | 48.02 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |