| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.41 | 4.36 | 0.05 |
| Feb | 4.27 | 4.26 | 0.01 |
| Mar | 4.68 | 4.67 | 0.01 |
| Apr | 3.53 | 3.59 | -0.06 |
| May | 3.48 | 3.49 | -0.01 |
| Jun | 4.41 | 4.40 | 0.01 |
| Jul | 4.01 | 4.05 | -0.04 |
| Aug | 4.46 | 4.59 | -0.13 |
| Sep | 3.74 | 3.81 | -0.07 |
| Oct | 3.40 | 3.46 | -0.06 |
| Nov | 3.76 | 3.82 | -0.06 |
| Dec | 4.46 | 4.72 | -0.26 |
48.61 | 49.22 | -0.61 |