| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.93 | -0.33 |
| Feb | 3.05 | 3.52 | -0.47 |
| Mar | 4.12 | 4.63 | -0.51 |
| Apr | 4.24 | 4.72 | -0.48 |
| May | 3.47 | 3.86 | -0.39 |
| Jun | 4.25 | 4.30 | -0.05 |
| Jul | 3.62 | 3.73 | -0.11 |
| Aug | 3.81 | 4.19 | -0.38 |
| Sep | 4.12 | 4.55 | -0.43 |
| Oct | 4.37 | 4.77 | -0.40 |
| Nov | 3.83 | 4.00 | -0.17 |
| Dec | 4.27 | 4.83 | -0.56 |
46.75 | 51.03 | -4.28 |