| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.12 | 4.20 | -0.08 |
| Feb | 3.81 | 4.04 | -0.23 |
| Mar | 5.12 | 5.30 | -0.18 |
| Apr | 4.52 | 4.71 | -0.19 |
| May | 3.61 | 3.62 | -0.01 |
| Jun | 3.97 | 3.84 | 0.13 |
| Jul | 3.43 | 3.36 | 0.07 |
| Aug | 3.54 | 3.91 | -0.37 |
| Sep | 3.93 | 3.85 | 0.08 |
| Oct | 4.89 | 5.17 | -0.28 |
| Nov | 4.33 | 4.51 | -0.18 |
| Dec | 4.95 | 5.09 | -0.14 |
50.22 | 51.60 | -1.38 |