| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.65 | -0.12 |
| Feb | 2.79 | 2.99 | -0.20 |
| Mar | 3.91 | 4.16 | -0.25 |
| Apr | 3.94 | 3.96 | -0.02 |
| May | 4.18 | 4.16 | 0.02 |
| Jun | 4.58 | 4.71 | -0.13 |
| Jul | 5.01 | 5.05 | -0.04 |
| Aug | 4.71 | 4.69 | 0.02 |
| Sep | 4.58 | 4.68 | -0.10 |
| Oct | 4.52 | 4.68 | -0.16 |
| Nov | 3.40 | 3.49 | -0.09 |
| Dec | 4.32 | 4.43 | -0.11 |
49.47 | 50.65 | -1.18 |