| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.38 | 3.42 | -0.04 |
| Feb | 2.84 | 2.93 | -0.09 |
| Mar | 3.54 | 3.59 | -0.05 |
| Apr | 3.91 | 3.88 | 0.03 |
| May | 4.08 | 4.09 | -0.01 |
| Jun | 4.76 | 4.94 | -0.18 |
| Jul | 4.72 | 4.68 | 0.04 |
| Aug | 4.47 | 4.56 | -0.09 |
| Sep | 3.82 | 4.01 | -0.19 |
| Oct | 4.83 | 5.07 | -0.24 |
| Nov | 3.53 | 3.66 | -0.13 |
| Dec | 4.05 | 4.15 | -0.10 |
47.93 | 48.98 | -1.05 |