| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.65 | -0.16 |
| Feb | 3.09 | 3.25 | -0.16 |
| Mar | 3.87 | 4.01 | -0.14 |
| Apr | 4.08 | 4.12 | -0.04 |
| May | 3.86 | 4.02 | -0.16 |
| Jun | 4.76 | 4.74 | 0.02 |
| Jul | 4.44 | 4.31 | 0.13 |
| Aug | 4.54 | 4.32 | 0.22 |
| Sep | 4.62 | 4.69 | -0.07 |
| Oct | 4.97 | 5.10 | -0.13 |
| Nov | 3.70 | 3.82 | -0.12 |
| Dec | 4.36 | 4.58 | -0.22 |
49.78 | 50.61 | -0.83 |