| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°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: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | 78a - Rogue/Illinois Valleys |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 97535 - Phoenix, OR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 30 | 32 | 34 | 37 | 42 | 47 | 51 | 51 | 45 | 38 | 33 | 30 | 39 |
| Avg Max Temp (°F) | 46 | 52 | 56 | 62 | 70 | 78 | 87 | 86 | 80 | 68 | 52 | 45 | 65 |
| Avg Precip (In.) | 2.96 | 2.43 | 2.33 | 1.59 | 1.51 | .81 | .47 | .58 | .93 | 1.62 | 2.99 | 3.37 | 21.59 |