| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.64 | 3.77 | -0.13 |
| Feb | 3.31 | 3.51 | -0.20 |
| Mar | 3.73 | 4.01 | -0.28 |
| Apr | 2.86 | 2.99 | -0.13 |
| May | 3.39 | 3.36 | 0.03 |
| Jun | 4.75 | 4.89 | -0.14 |
| Jul | 4.73 | 4.77 | -0.04 |
| Aug | 4.85 | 4.82 | 0.03 |
| Sep | 4.12 | 4.17 | -0.05 |
| Oct | 3.23 | 3.40 | -0.17 |
| Nov | 2.84 | 2.94 | -0.10 |
| Dec | 3.65 | 3.77 | -0.12 |
45.10 | 46.40 | -1.30 |