US Geography / US Weather / California Weather / Walnut Creek |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| . High | 57 | 60 | 62 | 66 | 68 | 72 | 74 | 75 | 76 | 72 | 64 | 57 |
| Avg. Low | 40 | 42 | 44 | 44 | 47 | 51 | 52 | 54 | 54 | 50 | 45 | 40 |
| Mean | 48 | 52 | 54 | 55 | 58 | 62 | 64 | 65 | 65 | 62 | 55 | 48 |
| Avg. Precip. | 4.8 in | 3.7 in | 3.9 in | 1.9 in | 0.4 in | 0.3 in | 0.1 in | 0.1 in | 0.4 in | 1.9 in | 3.9 in | 3.9 in |
Degrees in Fahrenheit
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