| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.41 | 0.02 |
| Feb | 2.97 | 3.03 | -0.06 |
| Mar | 3.92 | 4.15 | -0.23 |
| Apr | 3.93 | 4.07 | -0.14 |
| May | 3.65 | 3.65 | 0.00 |
| Jun | 4.54 | 4.97 | -0.43 |
| Jul | 3.94 | 4.02 | -0.08 |
| Aug | 4.49 | 4.51 | -0.02 |
| Sep | 4.24 | 4.22 | 0.02 |
| Oct | 4.70 | 4.83 | -0.13 |
| Nov | 3.66 | 3.77 | -0.11 |
| Dec | 4.24 | 4.41 | -0.17 |
47.71 | 49.04 | -1.33 |