| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.04 | 4.13 | -0.09 |
| Feb | 4.25 | 4.35 | -0.10 |
| Mar | 4.94 | 5.02 | -0.08 |
| Apr | 4.76 | 4.86 | -0.10 |
| May | 5.32 | 5.56 | -0.24 |
| Jun | 4.86 | 4.97 | -0.11 |
| Jul | 4.72 | 5.07 | -0.35 |
| Aug | 3.40 | 3.84 | -0.44 |
| Sep | 3.83 | 3.91 | -0.08 |
| Oct | 3.62 | 3.64 | -0.02 |
| Nov | 3.69 | 3.87 | -0.18 |
| Dec | 4.75 | 4.88 | -0.13 |
52.18 | 54.10 | -1.92 |