| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.03 | 3.14 | -0.11 |
| Feb | 2.71 | 2.80 | -0.09 |
| Mar | 4.02 | 4.14 | -0.12 |
| Apr | 3.40 | 3.49 | -0.09 |
| May | 3.82 | 4.14 | -0.32 |
| Jun | 4.18 | 4.41 | -0.23 |
| Jul | 4.49 | 4.55 | -0.06 |
| Aug | 4.42 | 4.26 | 0.16 |
| Sep | 4.54 | 4.59 | -0.05 |
| Oct | 3.94 | 4.17 | -0.23 |
| Nov | 3.14 | 3.22 | -0.08 |
| Dec | 3.73 | 3.87 | -0.14 |
45.42 | 46.78 | -1.36 |