| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.87 | 4.18 | -0.31 |
| Feb | 3.54 | 3.69 | -0.15 |
| Mar | 5.18 | 5.30 | -0.12 |
| Apr | 4.36 | 4.46 | -0.10 |
| May | 3.44 | 3.52 | -0.08 |
| Jun | 3.68 | 3.81 | -0.13 |
| Jul | 3.07 | 3.16 | -0.09 |
| Aug | 3.59 | 3.84 | -0.25 |
| Sep | 4.10 | 3.98 | 0.12 |
| Oct | 4.68 | 4.81 | -0.13 |
| Nov | 4.28 | 4.40 | -0.12 |
| Dec | 4.80 | 5.10 | -0.30 |
48.59 | 50.25 | -1.66 |