| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.86 | 4.10 | -0.24 |
| Feb | 3.30 | 3.69 | -0.39 |
| Mar | 4.39 | 4.69 | -0.30 |
| Apr | 4.05 | 4.12 | -0.07 |
| May | 3.17 | 3.31 | -0.14 |
| Jun | 3.35 | 3.39 | -0.04 |
| Jul | 2.55 | 2.76 | -0.21 |
| Aug | 3.41 | 3.36 | 0.05 |
| Sep | 3.82 | 3.94 | -0.12 |
| Oct | 4.42 | 4.52 | -0.10 |
| Nov | 4.06 | 4.05 | 0.01 |
| Dec | 4.68 | 5.00 | -0.32 |
45.06 | 46.93 | -1.87 |