| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.55 | -0.09 |
| Feb | 2.82 | 3.05 | -0.23 |
| Mar | 4.11 | 4.28 | -0.17 |
| Apr | 4.13 | 4.32 | -0.19 |
| May | 3.72 | 3.61 | 0.11 |
| Jun | 4.33 | 4.55 | -0.22 |
| Jul | 3.98 | 3.97 | 0.01 |
| Aug | 4.32 | 4.23 | 0.09 |
| Sep | 4.25 | 4.43 | -0.18 |
| Oct | 4.61 | 4.67 | -0.06 |
| Nov | 3.81 | 3.91 | -0.10 |
| Dec | 4.31 | 4.47 | -0.16 |
47.85 | 49.04 | -1.19 |