Latham, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 38.7 °F (low) to 58.2 °F (high). Annual precipitation averages 42.1 Inches. Latham 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 | 15.1 °F | 31.9 °F | 2.82 in. |
| February | 16.4 °F | 34.7 °F | 2.3 in. |
| March | 24.9 °F | 43.6 °F | 2.99 in. |
| April | 36.2 °F | 57.8 °F | 3.25 in. |
| May | 47.7 °F | 69.6 °F | 3.49 in. |
| June | 56.9 °F | 77.8 °F | 4.45 in. |
| July | 61.3 °F | 82.6 °F | 4.6 in. |
| August | 60.0 °F | 80.6 °F | 4.02 in. |
| September | 52.1 °F | 73.5 °F | 3.78 in. |
| October | 40.9 °F | 60.6 °F | 4.14 in. |
| November | 31.1 °F | 48.3 °F | 2.92 in. |
| December | 22.3 °F | 37.2 °F | 3.36 in. |
| Annual | 38.7 °F | 58.2 °F | 42.12 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |