| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.34 | 3.52 | -0.18 |
| Feb | 2.62 | 2.91 | -0.29 |
| Mar | 3.84 | 4.03 | -0.19 |
| Apr | 3.93 | 4.03 | -0.10 |
| May | 3.86 | 3.93 | -0.07 |
| Jun | 4.56 | 4.83 | -0.27 |
| Jul | 4.38 | 4.55 | -0.17 |
| Aug | 4.47 | 4.63 | -0.16 |
| Sep | 4.38 | 4.21 | 0.17 |
| Oct | 4.49 | 4.62 | -0.13 |
| Nov | 3.59 | 3.70 | -0.11 |
| Dec | 4.16 | 4.48 | -0.32 |
47.62 | 49.44 | -1.82 |