US Geography / US Weather / California Weather / San Marcos |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 67 | 67 | 67 | 70 | 72 | 76 | 81 | 82 | 81 | 78 | 71 | 67 |
| Avg. Low | 44 | 44 | 45 | 47 | 52 | 55 | 58 | 61 | 58 | 54 | 47 | 44 |
| Mean | 55 | 56 | 56 | 58 | 62 | 66 | 71 | 72 | 70 | 66 | 60 | 56 |
| Avg. Precip. | 2.5 in | 2.3 in | 2.4 in | 1.1 in | 0.3 in | 0.1 in | 0.0 in | 0.1 in | 0.4 in | 0.4 in | 1.7 in | 1.9 in |
Degrees in Fahrenheit
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