| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.80 | 3.85 | -0.05 |
| Feb | 3.35 | 3.33 | 0.02 |
| Mar | 4.49 | 4.55 | -0.06 |
| Apr | 4.29 | 4.40 | -0.11 |
| May | 3.65 | 3.51 | 0.14 |
| Jun | 4.12 | 4.26 | -0.14 |
| Jul | 3.60 | 3.55 | 0.05 |
| Aug | 3.82 | 3.89 | -0.07 |
| Sep | 3.94 | 3.96 | -0.02 |
| Oct | 4.88 | 4.83 | 0.05 |
| Nov | 3.93 | 3.94 | -0.01 |
| Dec | 4.68 | 4.79 | -0.11 |
48.55 | 48.86 | -0.31 |