| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.45 | 3.84 | -0.39 |
| Feb | 3.00 | 3.27 | -0.27 |
| Mar | 3.99 | 4.31 | -0.32 |
| Apr | 4.02 | 4.49 | -0.47 |
| May | 3.57 | 3.71 | -0.14 |
| Jun | 4.33 | 4.25 | 0.08 |
| Jul | 3.98 | 4.06 | -0.08 |
| Aug | 3.87 | 3.99 | -0.12 |
| Sep | 4.14 | 4.41 | -0.27 |
| Oct | 4.85 | 4.93 | -0.08 |
| Nov | 3.78 | 3.93 | -0.15 |
| Dec | 4.19 | 4.53 | -0.34 |
47.17 | 49.72 | -2.55 |