| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.40 | 4.33 | 0.07 |
| Feb | 4.75 | 4.72 | 0.03 |
| Mar | 4.92 | 4.91 | 0.01 |
| Apr | 4.95 | 4.84 | 0.11 |
| May | 4.97 | 5.18 | -0.21 |
| Jun | 4.57 | 4.47 | 0.10 |
| Jul | 4.71 | 4.89 | -0.18 |
| Aug | 3.81 | 3.81 | 0.00 |
| Sep | 3.74 | 3.82 | -0.08 |
| Oct | 3.60 | 3.53 | 0.07 |
| Nov | 3.70 | 3.78 | -0.08 |
| Dec | 5.04 | 4.98 | 0.06 |
53.16 | 53.26 | -0.10 |