| 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 Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 21 - May 31 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 61c - Low Lime Drift Plain |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 14757 - Mayville, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 18 | 25 | 36 | 47 | 56 | 61 | 59 | 53 | 42 | 33 | 24 | 39 |
| Avg Max Temp (°F) | 32 | 36 | 45 | 57 | 69 | 77 | 81 | 79 | 71 | 60 | 48 | 37 | 58 |
| Avg Precip (In.) | 2.94 | 2.53 | 3.11 | 3.48 | 3.62 | 4.53 | 4.29 | 4.52 | 4.78 | 4.32 | 4.37 | 3.79 | 46.29 |