Lake Telemark, New Jersey has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 41.6 °F (low) to 61 °F (high). Annual precipitation averages 50.9 Inches. Lake Telemark is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.8 °F | 36.5 °F | 3.9 in. |
| February | 20.8 °F | 38.8 °F | 2.9 in. |
| March | 28.5 °F | 47.0 °F | 4.34 in. |
| April | 39.5 °F | 59.9 °F | 3.99 in. |
| May | 49.0 °F | 70.3 °F | 3.97 in. |
| June | 58.6 °F | 79.0 °F | 5.23 in. |
| July | 63.4 °F | 85.0 °F | 4.26 in. |
| August | 62.2 °F | 82.8 °F | 4.68 in. |
| September | 54.5 °F | 75.8 °F | 4.72 in. |
| October | 43.2 °F | 63.7 °F | 4.5 in. |
| November | 33.8 °F | 51.9 °F | 3.77 in. |
| December | 26.2 °F | 41.3 °F | 4.63 in. |
| Annual | 41.6 °F | 61 °F | 50.89 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |