| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.89 | 4.11 | -0.22 |
| Feb | 3.43 | 3.71 | -0.28 |
| Mar | 4.72 | 4.68 | 0.04 |
| Apr | 4.17 | 4.19 | -0.02 |
| May | 3.37 | 3.39 | -0.02 |
| Jun | 3.40 | 3.47 | -0.07 |
| Jul | 2.72 | 2.82 | -0.10 |
| Aug | 3.54 | 3.41 | 0.13 |
| Sep | 3.98 | 3.93 | 0.05 |
| Oct | 4.67 | 4.53 | 0.14 |
| Nov | 4.20 | 4.01 | 0.19 |
| Dec | 4.71 | 5.07 | -0.36 |
46.80 | 47.32 | -0.52 |