| 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 Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Sep.1 - Sep. 10 |
| Average Last Frost Date: | Jun. 11 - Jun. 20 |
| Koppen-Geiger Climate Zone: | Dsb - Humid Continental Climate - Dry Cool Summer |
| Ecoregion: | 11n - Deschutes River Valley |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 97701 - Bend, OR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 22 | 25 | 27 | 30 | 35 | 41 | 46 | 45 | 38 | 32 | 28 | 23 | 33 |
| Avg Max Temp (°F) | 40 | 45 | 51 | 58 | 65 | 74 | 82 | 82 | 73 | 62 | 47 | 40 | 60 |
| Avg Precip (In.) | 1.76 | 1.13 | .91 | .71 | .88 | .68 | .58 | .57 | .45 | .64 | 1.47 | 1.69 | 11.47 |