| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 3.86 | -0.15 |
| Feb | 4.20 | 4.33 | -0.13 |
| Mar | 4.81 | 4.92 | -0.11 |
| Apr | 4.88 | 4.98 | -0.10 |
| May | 5.22 | 5.31 | -0.09 |
| Jun | 4.70 | 4.75 | -0.05 |
| Jul | 4.37 | 4.59 | -0.22 |
| Aug | 3.61 | 3.62 | -0.01 |
| Sep | 3.74 | 3.78 | -0.04 |
| Oct | 3.84 | 3.85 | -0.01 |
| Nov | 3.79 | 3.79 | 0.00 |
| Dec | 4.57 | 4.79 | -0.22 |
51.44 | 52.57 | -1.13 |