Fort Montgomery, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.1 °C (low) to 16.7 °C (high). Annual precipitation averages 1315 Millimeters. Fort Montgomery 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.2 °C | 2.9 °C | 103.12 mm |
| February | -5.2 °C | 4.6 °C | 72.39 mm |
| March | -1.2 °C | 9.2 °C | 105.41 mm |
| April | 4.7 °C | 16.1 °C | 103.89 mm |
| May | 10.2 °C | 22 °C | 93.22 mm |
| June | 15.3 °C | 26.9 °C | 117.6 mm |
| July | 18.2 °C | 29.7 °C | 112.27 mm |
| August | 17.5 °C | 28.8 °C | 124.97 mm |
| September | 13.3 °C | 24.9 °C | 126.49 mm |
| October | 7.1 °C | 17.9 °C | 130.3 mm |
| November | 1.6 °C | 11.7 °C | 111 mm |
| December | -2.7 °C | 5.7 °C | 114.3 mm |
| Annual | 6.1 °C | 16.7 °C | 1314.96 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 |