| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.61 | 3.82 | -0.21 |
| Feb | 2.97 | 3.09 | -0.12 |
| Mar | 3.94 | 4.09 | -0.15 |
| Apr | 3.82 | 3.95 | -0.13 |
| May | 3.73 | 3.60 | 0.13 |
| Jun | 4.23 | 4.19 | 0.04 |
| Jul | 4.35 | 4.38 | -0.03 |
| Aug | 4.46 | 4.73 | -0.27 |
| Sep | 4.42 | 4.58 | -0.16 |
| Oct | 3.32 | 3.29 | 0.03 |
| Nov | 3.39 | 3.49 | -0.10 |
| Dec | 3.46 | 3.64 | -0.18 |
45.70 | 46.85 | -1.15 |