| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 2012 Hardiness Zone: | Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F |
| 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 12920 - Chateaugay, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 6 | 8 | 18 | 31 | 43 | 52 | 57 | 55 | 47 | 36 | 27 | 14 | 33 |
| Avg Max Temp (°F) | 27 | 30 | 40 | 53 | 68 | 76 | 79 | 77 | 69 | 57 | 44 | 31 | 54 |
| Avg Precip (In.) | 2.5 | 2.12 | 2.52 | 2.89 | 3.11 | 3.73 | 4.02 | 4.51 | 3.99 | 3.27 | 3.36 | 2.82 | 38.85 |