| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.53 | -0.16 |
| Feb | 2.48 | 2.62 | -0.14 |
| Mar | 3.20 | 3.29 | -0.09 |
| Apr | 3.81 | 3.88 | -0.07 |
| May | 3.83 | 4.17 | -0.34 |
| Jun | 4.43 | 4.51 | -0.08 |
| Jul | 4.20 | 4.32 | -0.12 |
| Aug | 3.88 | 3.84 | 0.04 |
| Sep | 4.16 | 4.41 | -0.25 |
| Oct | 4.40 | 4.54 | -0.14 |
| Nov | 3.73 | 3.78 | -0.05 |
| Dec | 3.67 | 3.78 | -0.11 |
45.16 | 46.67 | -1.51 |