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Mount Hermon, CA Climate
1991 to 2020 normals at Ben Lomond #4, 2.8 mi from the center of Mount Hermon, elevation 420 ft.
Average weather by month
Select a month for daily normals and last year's weather
| Month | Range | High | Low | Precip. | Snow |
|---|---|---|---|---|---|
| January | 65° | 37° | 10.42 in | 0.0 in | |
| February | 67° | 39° | 9.68 in | 0.1 in | |
| March | 71° | 41° | 7.00 in | 0.0 in | |
| April | 75° | 42° | 3.28 in | 0.0 in | |
| May | 80° | 46° | 1.24 in | 0.0 in | |
| June | 86° | 49° | 0.24 in | 0.0 in | |
| July | 88° | 51° | 0.01 in | 0.0 in | |
| August | 90° | 51° | 0.04 in | 0.0 in | |
| September | 89° | 49° | 0.12 in | 0.0 in | |
| October | 83° | 44° | 2.17 in | 0.0 in | |
| November | 71° | 40° | 5.00 in | 0.0 in | |
| December | 64° | 37° | 10.43 in | 0.0 in | |
| Year | 77° | 49.63 in | 0.1 in |
Frequently asked questions
- What is the hottest month in Mount Hermon, CA?
- August is the warmest month, with a normal high of 90°F at Ben Lomond #4.
- What is the coldest month in Mount Hermon, CA?
- December is the coldest month, with a normal low of 37°F.
- What is the wettest month in Mount Hermon, CA?
- December has the most precipitation on average, about 10.43 inches.