| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.18 | 3.95 | 0.23 |
| Feb | 3.45 | 3.22 | 0.23 |
| Mar | 4.39 | 4.24 | 0.15 |
| Apr | 4.64 | 4.57 | 0.07 |
| May | 4.64 | 4.48 | 0.16 |
| Jun | 4.77 | 4.90 | -0.13 |
| Jul | 5.06 | 5.09 | -0.03 |
| Aug | 5.35 | 5.57 | -0.22 |
| Sep | 4.73 | 4.71 | 0.02 |
| Oct | 3.88 | 3.85 | 0.03 |
| Nov | 3.78 | 3.62 | 0.16 |
| Dec | 4.37 | 4.27 | 0.10 |
53.24 | 52.47 | 0.77 |