| 2023 Hardiness Zone: | 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. 21 - Oct. 31 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 83a - Erie Lake Plain |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 44001 - Amherst, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 20 | 29 | 38 | 49 | 58 | 62 | 61 | 54 | 43 | 34 | 24 | 41 |
| Avg Max Temp (°F) | 33 | 36 | 46 | 58 | 70 | 79 | 83 | 81 | 75 | 63 | 50 | 38 | 59 |
| Avg Precip (In.) | 2.28 | 2.05 | 2.7 | 3.24 | 3.48 | 3.96 | 3.64 | 3.74 | 3.43 | 2.55 | 3.09 | 2.91 | 37.07 |