| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.58 | -0.14 |
| Feb | 2.72 | 2.83 | -0.11 |
| Mar | 3.71 | 3.64 | 0.07 |
| Apr | 4.91 | 5.07 | -0.16 |
| May | 5.05 | 5.26 | -0.21 |
| Jun | 5.01 | 5.39 | -0.38 |
| Jul | 4.49 | 4.61 | -0.12 |
| Aug | 3.41 | 3.35 | 0.06 |
| Sep | 3.43 | 3.63 | -0.20 |
| Oct | 3.56 | 3.65 | -0.09 |
| Nov | 3.84 | 3.93 | -0.09 |
| Dec | 3.38 | 3.47 | -0.09 |
46.95 | 48.41 | -1.46 |