| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.09 | 2.99 | 0.10 |
| Feb | 3.32 | 3.19 | 0.13 |
| Mar | 4.35 | 4.24 | 0.11 |
| Apr | 4.82 | 4.24 | 0.58 |
| May | 5.45 | 5.28 | 0.17 |
| Jun | 4.10 | 3.77 | 0.33 |
| Jul | 3.03 | 3.01 | 0.02 |
| Aug | 2.97 | 2.83 | 0.14 |
| Sep | 3.74 | 3.82 | -0.08 |
| Oct | 4.60 | 4.59 | 0.01 |
| Nov | 3.94 | 3.90 | 0.04 |
| Dec | 4.17 | 4.25 | -0.08 |
47.58 | 46.11 | 1.47 |