| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.59 | -0.16 |
| Feb | 2.87 | 2.84 | 0.03 |
| Mar | 4.05 | 3.84 | 0.21 |
| Apr | 3.45 | 3.55 | -0.10 |
| May | 3.72 | 3.80 | -0.08 |
| Jun | 4.34 | 4.32 | 0.02 |
| Jul | 5.38 | 4.95 | 0.43 |
| Aug | 5.11 | 5.55 | -0.44 |
| Sep | 5.17 | 5.09 | 0.08 |
| Oct | 3.87 | 4.47 | -0.60 |
| Nov | 3.15 | 3.33 | -0.18 |
| Dec | 3.43 | 3.51 | -0.08 |
47.97 | 48.84 | -0.87 |