| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.67 | 3.87 | -0.20 |
| Feb | 2.94 | 3.33 | -0.39 |
| Mar | 4.30 | 4.57 | -0.27 |
| Apr | 4.27 | 4.54 | -0.27 |
| May | 3.74 | 3.69 | 0.05 |
| Jun | 4.32 | 4.27 | 0.05 |
| Jul | 3.74 | 3.84 | -0.10 |
| Aug | 4.16 | 4.19 | -0.03 |
| Sep | 4.33 | 4.52 | -0.19 |
| Oct | 4.71 | 4.70 | 0.01 |
| Nov | 4.02 | 4.05 | -0.03 |
| Dec | 4.45 | 4.82 | -0.37 |
48.65 | 50.39 | -1.74 |