| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.33 | 3.51 | -0.18 |
| Feb | 2.77 | 2.90 | -0.13 |
| Mar | 4.00 | 4.11 | -0.11 |
| Apr | 3.93 | 4.11 | -0.18 |
| May | 3.84 | 3.93 | -0.09 |
| Jun | 4.42 | 4.67 | -0.25 |
| Jul | 4.49 | 4.59 | -0.10 |
| Aug | 4.54 | 4.68 | -0.14 |
| Sep | 4.28 | 4.34 | -0.06 |
| Oct | 4.33 | 4.41 | -0.08 |
| Nov | 3.59 | 3.66 | -0.07 |
| Dec | 4.21 | 4.43 | -0.22 |
47.73 | 49.34 | -1.61 |