Pine Valley, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 40.7 °F (low) to 72.7 °F (high). Annual precipitation averages 23.5 Inches. Pine Valley is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 34.2 °F | 60.9 °F | 4.58 in. |
| February | 33.0 °F | 59.3 °F | 5.41 in. |
| March | 34.0 °F | 64.8 °F | 3.64 in. |
| April | 35.1 °F | 65.2 °F | 1.54 in. |
| May | 39.1 °F | 72.6 °F | 0.77 in. |
| June | 44.2 °F | 82.6 °F | 0.11 in. |
| July | 53.3 °F | 90.2 °F | 0.31 in. |
| August | 54.3 °F | 91.4 °F | 0.49 in. |
| September | 49.2 °F | 84.9 °F | 0.45 in. |
| October | 42.0 °F | 74.6 °F | 0.84 in. |
| November | 36.4 °F | 67.2 °F | 1.82 in. |
| December | 33.0 °F | 59.0 °F | 3.54 in. |
| Annual | 40.7 °F | 72.7 °F | 23.5 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |