US Geography / US Weather / California Weather / San Mateo |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 55 | 58 | 60 | 64 | 66 | 70 | 71 | 72 | 74 | 70 | 62 | 56 |
| Avg. Low | 41 | 45 | 45 | 47 | 48 | 52 | 54 | 55 | 55 | 51 | 47 | 42 |
| Mean | 48 | 52 | 54 | 56 | 58 | 62 | 64 | 64 | 65 | 61 | 55 | 48 |
| Avg. Precip. | 4.4 in | 3.3 in | 3.1 in | 1.4 in | 0.3 in | 0.1 in | 0.0 in | 0.1 in | 0.3 in | 1.3 in | 2.9 in | 3.1 in |
Degrees in Fahrenheit
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