Putnam Lake, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.4 °F (low) to 59.9 °F (high). Annual precipitation averages 50.3 Inches. Putnam Lake is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.2 °F | 35.6 °F | 3.8 in. |
| February | 20.0 °F | 38.6 °F | 2.79 in. |
| March | 27.2 °F | 46.5 °F | 3.95 in. |
| April | 37.9 °F | 59.2 °F | 3.87 in. |
| May | 47.9 °F | 69.5 °F | 3.61 in. |
| June | 57.1 °F | 77.6 °F | 4.35 in. |
| July | 62.5 °F | 82.7 °F | 4.64 in. |
| August | 61.1 °F | 80.8 °F | 5.24 in. |
| September | 53.7 °F | 74.0 °F | 4.75 in. |
| October | 42.1 °F | 62.2 °F | 4.85 in. |
| November | 32.6 °F | 51.1 °F | 4.13 in. |
| December | 24.5 °F | 40.4 °F | 4.32 in. |
| Annual | 40.4 °F | 59.9 °F | 50.3 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |