| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 83c - Ontario Lowlands |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 14304 - Niagara Falls, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 18 | 26 | 36 | 47 | 56 | 61 | 60 | 52 | 42 | 33 | 23 | 39 |
| Avg Max Temp (°F) | 31 | 34 | 43 | 55 | 68 | 76 | 81 | 79 | 71 | 60 | 47 | 36 | 57 |
| Avg Precip (In.) | 2.67 | 2.14 | 2.74 | 3.05 | 3.09 | 3.61 | 3.14 | 3.68 | 3.85 | 3.05 | 3.53 | 3.31 | 37.87 |