Troupsburg, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.3 °F (low) to 55.5 °F (high). Annual precipitation averages 37 Inches. Troupsburg is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.5 °F | 30.8 °F | 2.34 in. |
| February | 15.8 °F | 32.6 °F | 1.76 in. |
| March | 22.6 °F | 41.0 °F | 2.61 in. |
| April | 33.4 °F | 54.2 °F | 3.05 in. |
| May | 44.9 °F | 66.5 °F | 3.41 in. |
| June | 53.0 °F | 74.4 °F | 4.09 in. |
| July | 57.0 °F | 78.8 °F | 3.66 in. |
| August | 55.5 °F | 77.5 °F | 3.58 in. |
| September | 48.1 °F | 71.2 °F | 3.73 in. |
| October | 38.3 °F | 58.4 °F | 3.62 in. |
| November | 30.0 °F | 45.7 °F | 2.73 in. |
| December | 21.4 °F | 34.7 °F | 2.41 in. |
| Annual | 36.3 °F | 55.5 °F | 36.99 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |