| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.28 | 3.43 | -0.15 |
| Feb | 2.99 | 3.07 | -0.08 |
| Mar | 3.89 | 3.87 | 0.02 |
| Apr | 4.13 | 4.22 | -0.09 |
| May | 3.71 | 3.75 | -0.04 |
| Jun | 4.51 | 4.61 | -0.10 |
| Jul | 4.19 | 4.15 | 0.04 |
| Aug | 4.15 | 4.20 | -0.05 |
| Sep | 4.53 | 4.57 | -0.04 |
| Oct | 4.89 | 5.09 | -0.20 |
| Nov | 3.68 | 3.72 | -0.04 |
| Dec | 4.28 | 4.51 | -0.23 |
48.23 | 49.19 | -0.96 |