| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.21 | 4.01 | 0.20 |
| Feb | 4.33 | 4.25 | 0.08 |
| Mar | 4.94 | 5.01 | -0.07 |
| Apr | 4.73 | 4.86 | -0.13 |
| May | 5.21 | 5.15 | 0.06 |
| Jun | 4.85 | 4.78 | 0.07 |
| Jul | 4.83 | 5.21 | -0.38 |
| Aug | 3.68 | 3.84 | -0.16 |
| Sep | 3.71 | 3.79 | -0.08 |
| Oct | 3.52 | 3.57 | -0.05 |
| Nov | 3.67 | 3.70 | -0.03 |
| Dec | 4.86 | 4.78 | 0.08 |
52.54 | 52.95 | -0.41 |