| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.46 | -0.05 |
| Feb | 2.73 | 2.83 | -0.10 |
| Mar | 4.10 | 4.14 | -0.04 |
| Apr | 3.82 | 3.72 | 0.10 |
| May | 4.01 | 3.94 | 0.07 |
| Jun | 4.36 | 4.21 | 0.15 |
| Jul | 4.77 | 4.71 | 0.06 |
| Aug | 4.62 | 4.74 | -0.12 |
| Sep | 4.49 | 4.52 | -0.03 |
| Oct | 4.17 | 4.20 | -0.03 |
| Nov | 3.28 | 3.28 | 0.00 |
| Dec | 4.31 | 4.36 | -0.05 |
48.07 | 48.11 | -0.04 |