| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.67 | 3.57 | 0.10 |
| Feb | 4.10 | 4.03 | 0.07 |
| Mar | 5.05 | 4.94 | 0.11 |
| Apr | 5.62 | 5.37 | 0.25 |
| May | 5.43 | 5.48 | -0.05 |
| Jun | 3.54 | 3.37 | 0.17 |
| Jul | 3.66 | 3.85 | -0.19 |
| Aug | 3.58 | 3.39 | 0.19 |
| Sep | 3.25 | 3.22 | 0.03 |
| Oct | 4.33 | 4.16 | 0.17 |
| Nov | 4.69 | 4.91 | -0.22 |
| Dec | 5.02 | 5.10 | -0.08 |
51.94 | 51.39 | 0.55 |