US Geography / US Weather / California Weather / San Ysidro |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 65° | 65° | 65° | 66° | 67° | 68° | 74° | 75° | 75° | 74° | 68° | 65° |
| Avg. Low | 45° | 47° | 48° | 51° | 56° | 58° | 64° | 65° | 62° | 57° | 50° | 45° |
| Mean | 55° | 56° | 57° | 58° | 62° | 64° | 68° | 70° | 68° | 65° | 60° | 55° |
| Avg. Precip. | 1.6 in | 1.4 in | 1.8 in | 0.8 in | 0.3 in | 0.1 in | 0.0 in | 0.1 in | 0.3 in | 0.4 in | 1.6 in | 1.4 in |
Degrees in Fahrenheit
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