Lamont, California has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 50.6 °F (low) to 77.3 °F (high). Annual precipitation averages 7.1 Inches. Lamont is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 38.1 °F | 57.7 °F | 1.33 in. |
| February | 40.7 °F | 63.8 °F | 1.27 in. |
| March | 44.9 °F | 69.6 °F | 1.29 in. |
| April | 47.7 °F | 74.6 °F | 0.62 in. |
| May | 54.2 °F | 82.0 °F | 0.31 in. |
| June | 60.3 °F | 90.9 °F | 0.03 in. |
| July | 66.5 °F | 97.0 °F | 0.04 in. |
| August | 64.9 °F | 96.0 °F | 0.0 in. |
| September | 60.0 °F | 91.0 °F | 0.06 in. |
| October | 50.9 °F | 80.5 °F | 0.28 in. |
| November | 42.0 °F | 66.9 °F | 0.62 in. |
| December | 36.5 °F | 58.1 °F | 1.22 in. |
| Annual | 50.6 °F | 77.3 °F | 7.07 in. |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | 20-30 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 | Normal |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |