| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.36 | 4.39 | -0.03 |
| Feb | 4.34 | 4.32 | 0.02 |
| Mar | 4.63 | 4.62 | 0.01 |
| Apr | 3.50 | 3.54 | -0.04 |
| May | 3.38 | 3.23 | 0.15 |
| Jun | 4.56 | 4.57 | -0.01 |
| Jul | 4.03 | 4.06 | -0.03 |
| Aug | 4.48 | 4.50 | -0.02 |
| Sep | 3.73 | 3.82 | -0.09 |
| Oct | 3.07 | 3.18 | -0.11 |
| Nov | 3.61 | 3.72 | -0.11 |
| Dec | 4.68 | 4.71 | -0.03 |
48.37 | 48.66 | -0.29 |