| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.71 | -0.32 |
| Feb | 2.78 | 2.93 | -0.15 |
| Mar | 3.86 | 4.00 | -0.14 |
| Apr | 3.87 | 3.68 | 0.19 |
| May | 3.79 | 3.71 | 0.08 |
| Jun | 4.40 | 4.40 | 0.00 |
| Jul | 4.43 | 4.71 | -0.28 |
| Aug | 4.20 | 5.06 | -0.86 |
| Sep | 4.49 | 4.69 | -0.20 |
| Oct | 4.64 | 4.71 | -0.07 |
| Nov | 3.77 | 3.82 | -0.05 |
| Dec | 4.07 | 4.44 | -0.37 |
47.69 | 49.86 | -2.17 |