Thendara, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 30.9 °F (low) to 52.1 °F (high). Annual precipitation averages 51.1 Inches. Thendara is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.9 °F | 26.1 °F | 4.31 in. |
| February | 5.7 °F | 28.9 °F | 3.31 in. |
| March | 14.4 °F | 37.1 °F | 3.3 in. |
| April | 28.5 °F | 50.4 °F | 3.84 in. |
| May | 40.7 °F | 64.3 °F | 4.39 in. |
| June | 50.1 °F | 71.8 °F | 4.76 in. |
| July | 54.3 °F | 75.7 °F | 4.22 in. |
| August | 52.9 °F | 74.8 °F | 4.43 in. |
| September | 45.6 °F | 68.1 °F | 4.22 in. |
| October | 34.9 °F | 55.0 °F | 5.43 in. |
| November | 24.9 °F | 42.2 °F | 4.43 in. |
| December | 13.5 °F | 31.1 °F | 4.47 in. |
| Annual | 30.9 °F | 52.1 °F | 51.11 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 3b : -35°F to -30°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |