| 2023 Hardiness Zone: | Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 2012 Hardiness Zone: | Zone 3b: -35°F to -30°F Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 21 - May 31 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 83e - Upper St. Lawrence Valley |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 13367 - Lowville, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 7 | 9 | 19 | 32 | 43 | 52 | 56 | 54 | 46 | 36 | 28 | 15 | 33 |
| Avg Max Temp (°F) | 26 | 29 | 38 | 52 | 66 | 74 | 78 | 76 | 68 | 56 | 43 | 31 | 53 |
| Avg Precip (In.) | 3.68 | 2.59 | 3.17 | 3.27 | 3.27 | 3.49 | 3.69 | 3.69 | 4.21 | 3.56 | 4.25 | 3.72 | 42.61 |