Loudonville, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 38.6 °F (low) to 58.1 °F (high). Annual precipitation averages 42 Inches. Loudonville is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.0 °F | 31.8 °F | 2.82 in. |
| February | 16.3 °F | 34.6 °F | 2.31 in. |
| March | 24.7 °F | 43.5 °F | 3.0 in. |
| April | 36.0 °F | 57.6 °F | 3.2 in. |
| May | 47.5 °F | 69.5 °F | 3.4 in. |
| June | 56.7 °F | 77.6 °F | 4.48 in. |
| July | 61.2 °F | 82.4 °F | 4.64 in. |
| August | 59.9 °F | 80.5 °F | 3.98 in. |
| September | 51.9 °F | 73.4 °F | 3.79 in. |
| October | 40.7 °F | 60.5 °F | 4.08 in. |
| November | 31.0 °F | 48.3 °F | 2.9 in. |
| December | 22.2 °F | 37.1 °F | 3.35 in. |
| Annual | 38.6 °F | 58.1 °F | 41.95 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |