| 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 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 61d - Erie Gorges |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 44286 - Richfield, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 19 | 28 | 37 | 48 | 57 | 62 | 60 | 53 | 42 | 33 | 24 | 40 |
| Avg Max Temp (°F) | 33 | 36 | 47 | 58 | 70 | 78 | 82 | 80 | 73 | 61 | 49 | 38 | 59 |
| Avg Precip (In.) | 2.43 | 2.2 | 2.96 | 3.36 | 3.79 | 4 | 3.91 | 3.69 | 3.67 | 2.7 | 3.27 | 3.04 | 39 |