| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.24 | 3.99 | 0.25 |
| Feb | 3.74 | 3.66 | 0.08 |
| Mar | 4.47 | 4.24 | 0.23 |
| Apr | 4.15 | 4.17 | -0.02 |
| May | 4.23 | 4.25 | -0.02 |
| Jun | 4.81 | 4.89 | -0.08 |
| Jul | 4.93 | 5.74 | -0.81 |
| Aug | 4.38 | 4.59 | -0.21 |
| Sep | 3.99 | 4.07 | -0.08 |
| Oct | 3.39 | 2.84 | 0.55 |
| Nov | 3.74 | 3.20 | 0.54 |
| Dec | 4.71 | 4.10 | 0.61 |
50.78 | 49.74 | 1.04 |