| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.82 | 3.94 | -0.12 |
| Feb | 3.83 | 4.02 | -0.19 |
| Mar | 4.82 | 4.91 | -0.09 |
| Apr | 4.76 | 4.86 | -0.10 |
| May | 5.13 | 5.30 | -0.17 |
| Jun | 4.94 | 5.24 | -0.30 |
| Jul | 5.07 | 5.10 | -0.03 |
| Aug | 3.60 | 3.62 | -0.02 |
| Sep | 3.91 | 3.97 | -0.06 |
| Oct | 3.57 | 3.48 | 0.09 |
| Nov | 3.41 | 3.51 | -0.10 |
| Dec | 4.48 | 4.63 | -0.15 |
51.34 | 52.58 | -1.24 |