US Geography / US Weather / California Weather / San Bernardino |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 66 | 68 | 70 | 75 | 80 | 88 | 97 | 96 | 91 | 84 | 72 | 66 |
| Avg. Low | 40 | 42 | 44 | 47 | 52 | 57 | 61 | 62 | 58 | 52 | 44 | 40 |
| Mean | 54 | 56 | 57 | 62 | 67 | 74 | 78 | 80 | 75 | 68 | 58 | 54 |
| Avg. Precip. | 2.9 in | 2.8 in | 2.7 in | 1.3 in | 0.4 in | 0.1 in | 0.0 in | 0.3 in | 0.5 in | 0.6 in | 1.8 in | 2.3 in |
Degrees in Fahrenheit
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