| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Csa - Hot-Summer Mediterranean Climate |
| Ecoregion: | 78a - Rogue/Illinois Valleys |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 97501 - Medford, OR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 31 | 32 | 35 | 38 | 43 | 48 | 53 | 52 | 46 | 39 | 34 | 31 | 40 |
| Avg Max Temp (°F) | 47 | 53 | 58 | 64 | 72 | 80 | 88 | 88 | 82 | 69 | 52 | 45 | 66 |
| Avg Precip (In.) | 2.78 | 2.24 | 2.03 | 1.43 | 1.29 | .72 | .36 | .55 | .82 | 1.42 | 3.1 | 3.16 | 19.88 |