| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.77 | -0.17 |
| Feb | 2.87 | 3.08 | -0.21 |
| Mar | 4.25 | 4.42 | -0.17 |
| Apr | 3.64 | 3.81 | -0.17 |
| May | 3.95 | 3.91 | 0.04 |
| Jun | 4.19 | 4.29 | -0.10 |
| Jul | 4.66 | 4.62 | 0.04 |
| Aug | 4.35 | 4.50 | -0.15 |
| Sep | 3.95 | 4.07 | -0.12 |
| Oct | 4.13 | 4.24 | -0.11 |
| Nov | 3.37 | 3.44 | -0.07 |
| Dec | 4.31 | 4.55 | -0.24 |
47.27 | 48.70 | -1.43 |