| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.54 | -0.11 |
| Feb | 2.76 | 2.84 | -0.08 |
| Mar | 4.11 | 4.23 | -0.12 |
| Apr | 3.72 | 3.72 | 0.00 |
| May | 3.97 | 3.94 | 0.03 |
| Jun | 4.25 | 4.18 | 0.07 |
| Jul | 4.80 | 4.71 | 0.09 |
| Aug | 4.49 | 4.77 | -0.28 |
| Sep | 4.52 | 4.44 | 0.08 |
| Oct | 4.07 | 4.08 | -0.01 |
| Nov | 3.36 | 3.27 | 0.09 |
| Dec | 4.33 | 4.41 | -0.08 |
47.81 | 48.13 | -0.32 |