| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.87 | -0.27 |
| Feb | 2.98 | 3.11 | -0.13 |
| Mar | 3.89 | 4.00 | -0.11 |
| Apr | 3.45 | 3.77 | -0.32 |
| May | 3.82 | 4.10 | -0.28 |
| Jun | 4.57 | 4.67 | -0.10 |
| Jul | 5.45 | 5.41 | 0.04 |
| Aug | 5.36 | 5.43 | -0.07 |
| Sep | 5.07 | 5.00 | 0.07 |
| Oct | 3.92 | 4.12 | -0.20 |
| Nov | 3.22 | 3.57 | -0.35 |
| Dec | 3.38 | 3.64 | -0.26 |
48.71 | 50.69 | -1.98 |