| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.85 | 4.09 | -0.24 |
| Feb | 3.60 | 3.76 | -0.16 |
| Mar | 3.95 | 4.21 | -0.26 |
| Apr | 3.15 | 3.22 | -0.07 |
| May | 3.39 | 3.32 | 0.07 |
| Jun | 5.35 | 5.16 | 0.19 |
| Jul | 5.05 | 4.93 | 0.12 |
| Aug | 4.96 | 5.13 | -0.17 |
| Sep | 4.19 | 4.28 | -0.09 |
| Oct | 3.28 | 3.26 | 0.02 |
| Nov | 2.98 | 3.09 | -0.11 |
| Dec | 3.82 | 3.95 | -0.13 |
47.57 | 48.40 | -0.83 |