Kirkland, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.5 °F (low) to 56.6 °F (high). Annual precipitation averages 46.8 Inches. Kirkland is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 13.6 °F | 30.2 °F | 3.09 in. |
| February | 14.8 °F | 32.6 °F | 2.8 in. |
| March | 22.6 °F | 40.8 °F | 3.38 in. |
| April | 34.5 °F | 55.3 °F | 3.84 in. |
| May | 45.9 °F | 68.5 °F | 3.96 in. |
| June | 55.4 °F | 76.8 °F | 4.76 in. |
| July | 60.1 °F | 81.4 °F | 4.51 in. |
| August | 58.6 °F | 79.6 °F | 4.29 in. |
| September | 51.3 °F | 72.5 °F | 4.09 in. |
| October | 40.7 °F | 59.3 °F | 4.66 in. |
| November | 30.9 °F | 46.7 °F | 3.78 in. |
| December | 21.5 °F | 35.6 °F | 3.65 in. |
| Annual | 37.5 °F | 56.6 °F | 46.81 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 |