| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.30 | 4.37 | -0.07 |
| Feb | 4.32 | 4.35 | -0.03 |
| Mar | 4.61 | 4.63 | -0.02 |
| Apr | 3.47 | 3.56 | -0.09 |
| May | 3.32 | 3.10 | 0.22 |
| Jun | 4.52 | 4.64 | -0.12 |
| Jul | 3.95 | 4.09 | -0.14 |
| Aug | 4.52 | 4.60 | -0.08 |
| Sep | 3.69 | 3.88 | -0.19 |
| Oct | 2.97 | 3.06 | -0.09 |
| Nov | 3.55 | 3.71 | -0.16 |
| Dec | 4.66 | 4.74 | -0.08 |
47.88 | 48.73 | -0.85 |