| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.57 | -0.10 |
| Feb | 2.88 | 2.89 | -0.01 |
| Mar | 4.04 | 3.92 | 0.12 |
| Apr | 3.57 | 3.63 | -0.06 |
| May | 3.73 | 3.86 | -0.13 |
| Jun | 4.40 | 4.26 | 0.14 |
| Jul | 5.26 | 5.21 | 0.05 |
| Aug | 5.01 | 5.41 | -0.40 |
| Sep | 4.97 | 5.02 | -0.05 |
| Oct | 3.93 | 4.39 | -0.46 |
| Nov | 3.07 | 3.16 | -0.09 |
| Dec | 3.56 | 3.59 | -0.03 |
47.89 | 48.91 | -1.02 |