| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.0 °F | 39.2 °F | 1.65 in. |
| February | 21.5 °F | 43.6 °F | 1.28 in. |
| March | 25.3 °F | 50.1 °F | 1.39 in. |
| April | 29.8 °F | 55.8 °F | 1.58 in. |
| May | 35.5 °F | 64.3 °F | 2.0 in. |
| June | 40.4 °F | 71.8 °F | 1.48 in. |
| July | 44.5 °F | 83.1 °F | 0.49 in. |
| August | 43.0 °F | 83.5 °F | 0.5 in. |
| September | 36.4 °F | 75.1 °F | 0.58 in. |
| October | 29.8 °F | 61.3 °F | 1.4 in. |
| November | 25.2 °F | 46.9 °F | 1.86 in. |
| December | 20.2 °F | 38.0 °F | 2.1 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |