| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 5a: -20°F to -15°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 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | July 11 - July 20 |
| Average Last Frost Date: | Jul. 1 - Jul. 10 |
| Koppen-Geiger Climate Zone: | Csb - Warm-Summer Mediterranean Climate |
| Ecoregion: | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 93517 - Bridgeport, CA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 10 | 13 | 19 | 23 | 30 | 36 | 41 | 40 | 33 | 24 | 18 | 11 | 25 |
| Avg Max Temp (°F) | 41 | 44 | 49 | 56 | 63 | 72 | 80 | 80 | 73 | 64 | 51 | 42 | 59 |
| Avg Precip (In.) | 1.51 | 1.63 | 1.22 | .41 | .59 | .6 | .47 | .52 | .53 | .44 | 1.01 | 1.11 | 10.02 |