| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.17 | 4.21 | -0.04 |
| Feb | 3.48 | 3.41 | 0.07 |
| Mar | 3.72 | 3.71 | 0.01 |
| Apr | 3.78 | 3.77 | 0.01 |
| May | 4.72 | 4.78 | -0.06 |
| Jun | 4.64 | 4.82 | -0.18 |
| Jul | 3.12 | 2.94 | 0.18 |
| Aug | 3.42 | 3.90 | -0.48 |
| Sep | 3.83 | 3.78 | 0.05 |
| Oct | 4.80 | 4.67 | 0.13 |
| Nov | 4.24 | 4.49 | -0.25 |
| Dec | 4.69 | 4.46 | 0.23 |
48.61 | 48.94 | -0.33 |