| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.38 | 4.37 | 0.01 |
| Feb | 4.34 | 4.29 | 0.05 |
| Mar | 4.64 | 4.62 | 0.02 |
| Apr | 3.52 | 3.55 | -0.03 |
| May | 3.42 | 3.38 | 0.04 |
| Jun | 4.56 | 4.38 | 0.18 |
| Jul | 4.03 | 4.07 | -0.04 |
| Aug | 4.49 | 4.42 | 0.07 |
| Sep | 3.81 | 3.79 | 0.02 |
| Oct | 3.20 | 3.34 | -0.14 |
| Nov | 3.64 | 3.79 | -0.15 |
| Dec | 4.66 | 4.68 | -0.02 |
48.69 | 48.68 | 0.01 |