| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.69 | -0.26 |
| Feb | 2.95 | 3.28 | -0.33 |
| Mar | 3.57 | 3.74 | -0.17 |
| Apr | 3.80 | 3.85 | -0.05 |
| May | 3.95 | 3.74 | 0.21 |
| Jun | 4.55 | 4.49 | 0.06 |
| Jul | 4.17 | 4.19 | -0.02 |
| Aug | 3.93 | 4.21 | -0.28 |
| Sep | 3.82 | 3.88 | -0.06 |
| Oct | 4.81 | 4.90 | -0.09 |
| Nov | 3.61 | 3.72 | -0.11 |
| Dec | 4.18 | 4.46 | -0.28 |
46.77 | 48.15 | -1.38 |