| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.63 | -0.06 |
| Feb | 2.97 | 2.92 | 0.05 |
| Mar | 4.10 | 4.01 | 0.09 |
| Apr | 3.67 | 3.59 | 0.08 |
| May | 3.79 | 3.65 | 0.14 |
| Jun | 4.49 | 4.58 | -0.09 |
| Jul | 4.91 | 4.84 | 0.07 |
| Aug | 4.77 | 4.65 | 0.12 |
| Sep | 5.08 | 5.30 | -0.22 |
| Oct | 3.57 | 3.70 | -0.13 |
| Nov | 3.45 | 3.39 | 0.06 |
| Dec | 3.52 | 3.45 | 0.07 |
47.89 | 47.71 | 0.18 |