Lake Elsinore, California has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 49.7 °F (low) to 80.2 °F (high). Annual precipitation averages 12.6 Inches. Lake Elsinore is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 40.6 °F | 66.9 °F | 3.3 in. |
| February | 41.1 °F | 67.3 °F | 3.08 in. |
| March | 43.9 °F | 70.9 °F | 1.72 in. |
| April | 46.4 °F | 76.0 °F | 0.55 in. |
| May | 51.9 °F | 81.6 °F | 0.23 in. |
| June | 55.7 °F | 89.2 °F | 0.02 in. |
| July | 61.3 °F | 96.1 °F | 0.09 in. |
| August | 61.8 °F | 97.5 °F | 0.05 in. |
| September | 58.6 °F | 93.2 °F | 0.11 in. |
| October | 51.6 °F | 83.5 °F | 0.53 in. |
| November | 44.1 °F | 74.4 °F | 0.65 in. |
| December | 39.3 °F | 66.3 °F | 2.23 in. |
| Annual | 49.7 °F | 80.2 °F | 12.56 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| 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 | BSk - Cold Semi-Arid Climate |