| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F |
| Average First Frost Date: | Sep. 21 - Sep. 30 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 60a - Glaciated Low Plateau |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 12046 - Coeymans Hollow, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 11 | 13 | 23 | 34 | 45 | 54 | 59 | 57 | 48 | 37 | 29 | 19 | 36 |
| Avg Max Temp (°F) | 31 | 34 | 44 | 56 | 69 | 77 | 82 | 79 | 71 | 60 | 48 | 36 | 57 |
| Avg Precip (In.) | 2.63 | 2.21 | 3.22 | 3.52 | 3.97 | 4.1 | 3.96 | 3.43 | 3.66 | 3.27 | 3.61 | 2.82 | 40.41 |