| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.59 | -0.02 |
| Feb | 3.74 | 3.87 | -0.13 |
| Mar | 4.68 | 4.71 | -0.03 |
| Apr | 5.25 | 5.28 | -0.03 |
| May | 5.29 | 5.06 | 0.23 |
| Jun | 3.53 | 3.43 | 0.10 |
| Jul | 3.96 | 3.82 | 0.14 |
| Aug | 3.57 | 3.39 | 0.18 |
| Sep | 3.32 | 3.25 | 0.07 |
| Oct | 3.72 | 3.94 | -0.22 |
| Nov | 4.47 | 4.62 | -0.15 |
| Dec | 4.31 | 4.51 | -0.20 |
49.41 | 49.47 | -0.06 |