| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.64 | 3.44 | 0.20 |
| Feb | 3.86 | 3.93 | -0.07 |
| Mar | 5.11 | 5.22 | -0.11 |
| Apr | 5.35 | 5.42 | -0.07 |
| May | 5.54 | 5.56 | -0.02 |
| Jun | 3.44 | 3.52 | -0.08 |
| Jul | 3.71 | 3.58 | 0.13 |
| Aug | 3.62 | 3.72 | -0.10 |
| Sep | 3.52 | 3.74 | -0.22 |
| Oct | 4.09 | 4.13 | -0.04 |
| Nov | 4.96 | 4.65 | 0.31 |
| Dec | 4.68 | 4.73 | -0.05 |
51.52 | 51.64 | -0.12 |