| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F |
| Average First Frost Date: | Sep. 21 - Sep. 30 |
| Average Last Frost Date: | Jun. 11 - Jun. 20 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | 9c - Oak/Conifer Foothills |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 97041 - Mount Hood Parkdale, OR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 25 | 29 | 31 | 35 | 41 | 47 | 52 | 52 | 45 | 38 | 32 | 28 | 38 |
| Avg Max Temp (°F) | 37 | 42 | 48 | 55 | 62 | 69 | 76 | 76 | 69 | 58 | 45 | 39 | 56 |
| Avg Precip (In.) | 6.77 | 4.6 | 3.09 | 1.79 | 1.22 | .98 | .27 | .96 | 1.08 | 2.23 | 5.17 | 6.79 | 34.94 |