US Geography / US Weather / California Weather / Jamestown |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 55 | 58 | 61 | 67 | 77 | 87 | 94 | 94 | 87 | 76 | 62 | 54 |
| Avg. Low | 31 | 34 | 36 | 38 | 45 | 51 | 56 | 55 | 51 | 44 | 36 | 31 |
| Mean | 44 | 46 | 48 | 54 | 61 | 68 | 76 | 75 | 68 | 60 | 48 | 44 |
| Avg. Precip. | 5.6 in | 5.0 in | 5.3 in | 2.7 in | 0.8 in | 0.3 in | 0.1 in | 0.3 in | 0.6 in | 1.8 in | 4.8 in | 4.6 in |
Degrees in Fahrenheit
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