| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.40 | 4.29 | 0.11 |
| Feb | 3.93 | 3.82 | 0.11 |
| Mar | 4.61 | 4.63 | -0.02 |
| Apr | 4.25 | 4.30 | -0.05 |
| May | 4.09 | 4.27 | -0.18 |
| Jun | 4.34 | 4.36 | -0.02 |
| Jul | 4.39 | 4.68 | -0.29 |
| Aug | 4.73 | 4.74 | -0.01 |
| Sep | 4.17 | 4.17 | 0.00 |
| Oct | 3.74 | 3.79 | -0.05 |
| Nov | 3.97 | 3.98 | -0.01 |
| Dec | 4.71 | 4.80 | -0.09 |
51.33 | 51.83 | -0.50 |