Bangor, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 49.2 °F (low) to 74.2 °F (high). Annual precipitation averages 32.3 Inches. Bangor is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Dec. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 38.9 °F | 56.1 °F | 5.78 in. |
| February | 41.0 °F | 60.1 °F | 5.59 in. |
| March | 43.1 °F | 64.4 °F | 5.01 in. |
| April | 45.6 °F | 69.4 °F | 2.64 in. |
| May | 51.4 °F | 78.4 °F | 1.48 in. |
| June | 57.2 °F | 87.2 °F | 0.5 in. |
| July | 62.0 °F | 94.2 °F | 0.03 in. |
| August | 60.9 °F | 93.2 °F | 0.04 in. |
| September | 57.6 °F | 88.9 °F | 0.17 in. |
| October | 50.7 °F | 78.4 °F | 1.59 in. |
| November | 43.6 °F | 64.4 °F | 3.41 in. |
| December | 38.6 °F | 55.8 °F | 6.02 in. |
| Annual | 49.2 °F | 74.2 °F | 32.26 in. |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |