| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.83 | 3.84 | -0.01 |
| Feb | 3.05 | 3.16 | -0.11 |
| Mar | 3.78 | 3.81 | -0.03 |
| Apr | 4.01 | 4.32 | -0.31 |
| May | 3.62 | 3.74 | -0.12 |
| Jun | 4.13 | 4.25 | -0.12 |
| Jul | 3.18 | 3.13 | 0.05 |
| Aug | 3.05 | 3.19 | -0.14 |
| Sep | 3.82 | 3.88 | -0.06 |
| Oct | 5.08 | 5.36 | -0.28 |
| Nov | 4.47 | 4.60 | -0.13 |
| Dec | 4.52 | 4.59 | -0.07 |
46.54 | 47.87 | -1.33 |