| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.46 | 4.49 | -0.03 |
| Feb | 4.65 | 4.60 | 0.05 |
| Mar | 4.84 | 4.72 | 0.12 |
| Apr | 3.70 | 3.72 | -0.02 |
| May | 3.08 | 3.17 | -0.09 |
| Jun | 4.40 | 4.60 | -0.20 |
| Jul | 4.41 | 4.50 | -0.09 |
| Aug | 4.42 | 4.39 | 0.03 |
| Sep | 3.94 | 3.81 | 0.13 |
| Oct | 3.33 | 3.31 | 0.02 |
| Nov | 3.63 | 3.69 | -0.06 |
| Dec | 4.58 | 4.53 | 0.05 |
49.44 | 49.53 | -0.09 |