| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F | |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F | |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F | |
| Average First Frost Date: | Nov. 1 - Nov. 10 | |
| Average Last Frost Date: | Apr. 11 - Apr. 20 | |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate | |
| Ecoregion: | 3c - Prairie Terraces | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 97448 - Junction City, OR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 33 | 35 | 37 | 39 | 43 | 48 | 51 | 51 | 48 | 42 | 38 | 33 | 41 |
| Avg Max Temp (°F) | 47 | 51 | 57 | 61 | 68 | 74 | 82 | 83 | 78 | 65 | 52 | 46 | 64 |
| Avg Precip (In.) | 7.2 | 5.76 | 5.12 | 3.07 | 2.4 | 1.53 | .51 | .76 | 1.34 | 3.56 | 7.19 | 7.92 | 46.37 |