| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 4.11 | -0.40 |
| Feb | 3.31 | 3.64 | -0.33 |
| Mar | 4.79 | 5.37 | -0.58 |
| Apr | 4.26 | 4.72 | -0.46 |
| May | 3.43 | 3.61 | -0.18 |
| Jun | 3.59 | 3.90 | -0.31 |
| Jul | 3.07 | 3.19 | -0.12 |
| Aug | 3.64 | 3.97 | -0.33 |
| Sep | 3.84 | 3.98 | -0.14 |
| Oct | 4.47 | 4.81 | -0.34 |
| Nov | 3.90 | 4.28 | -0.38 |
| Dec | 4.58 | 5.13 | -0.55 |
46.59 | 50.71 | -4.12 |