| 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 1 - May 10 |
| 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 97504 - Medford, OR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 30 | 32 | 34 | 37 | 42 | 48 | 52 | 52 | 45 | 38 | 34 | 30 | 40 |
| Avg Max Temp (°F) | 47 | 52 | 57 | 63 | 71 | 79 | 88 | 87 | 81 | 68 | 52 | 45 | 66 |
| Avg Precip (In.) | 2.78 | 2.33 | 2.19 | 1.51 | 1.42 | .79 | .43 | .57 | .86 | 1.57 | 3.11 | 3.24 | 20.81 |