| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.67 | -0.23 |
| Feb | 3.36 | 3.53 | -0.17 |
| Mar | 4.41 | 4.65 | -0.24 |
| Apr | 4.14 | 4.31 | -0.17 |
| May | 3.79 | 3.98 | -0.19 |
| Jun | 4.12 | 4.32 | -0.20 |
| Jul | 3.52 | 3.55 | -0.03 |
| Aug | 3.41 | 3.47 | -0.06 |
| Sep | 3.72 | 3.91 | -0.19 |
| Oct | 4.81 | 4.91 | -0.10 |
| Nov | 3.89 | 3.87 | 0.02 |
| Dec | 4.56 | 4.75 | -0.19 |
47.17 | 48.92 | -1.75 |