| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.81 | 3.69 | 0.12 |
| Feb | 4.32 | 4.34 | -0.02 |
| Mar | 4.68 | 4.67 | 0.01 |
| Apr | 5.01 | 5.02 | -0.01 |
| May | 5.39 | 5.34 | 0.05 |
| Jun | 4.24 | 4.07 | 0.17 |
| Jul | 4.41 | 4.39 | 0.02 |
| Aug | 3.60 | 3.40 | 0.20 |
| Sep | 3.61 | 3.63 | -0.02 |
| Oct | 3.79 | 3.78 | 0.01 |
| Nov | 3.72 | 3.64 | 0.08 |
| Dec | 4.73 | 4.53 | 0.20 |
51.31 | 50.50 | 0.81 |