| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 83a - Erie Lake Plain | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 14092 - Lewiston, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 19 | 26 | 36 | 47 | 56 | 62 | 60 | 53 | 42 | 34 | 23 | 40 |
| Avg Max Temp (°F) | 32 | 34 | 43 | 55 | 68 | 77 | 81 | 79 | 71 | 60 | 48 | 36 | 57 |
| Avg Precip (In.) | 2.37 | 1.93 | 2.56 | 2.97 | 3 | 3.47 | 3.02 | 3.55 | 3.81 | 2.94 | 3.38 | 3.07 | 36.06 |