| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.55 | -0.18 |
| Feb | 2.68 | 2.93 | -0.25 |
| Mar | 3.94 | 4.06 | -0.12 |
| Apr | 3.98 | 4.03 | -0.05 |
| May | 3.91 | 3.93 | -0.02 |
| Jun | 4.57 | 4.84 | -0.27 |
| Jul | 4.47 | 4.55 | -0.08 |
| Aug | 4.55 | 4.64 | -0.09 |
| Sep | 4.45 | 4.17 | 0.28 |
| Oct | 4.57 | 4.69 | -0.12 |
| Nov | 3.69 | 3.74 | -0.05 |
| Dec | 4.27 | 4.54 | -0.27 |
48.45 | 49.67 | -1.22 |