| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.91 | 0.85 | 0.06 |
| Feb | 0.91 | 0.82 | 0.09 |
| Mar | 1.67 | 1.57 | 0.10 |
| Apr | 2.88 | 2.81 | 0.07 |
| May | 4.12 | 4.01 | 0.11 |
| Jun | 4.95 | 5.20 | -0.25 |
| Jul | 4.14 | 4.13 | 0.01 |
| Aug | 4.54 | 4.72 | -0.18 |
| Sep | 3.52 | 3.42 | 0.10 |
| Oct | 2.85 | 2.71 | 0.14 |
| Nov | 1.71 | 1.61 | 0.10 |
| Dec | 1.22 | 1.11 | 0.11 |
33.42 | 32.96 | 0.46 |