| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.29 | 3.61 | -0.32 |
| Feb | 2.90 | 2.88 | 0.02 |
| Mar | 3.93 | 4.18 | -0.25 |
| Apr | 4.51 | 4.88 | -0.37 |
| May | 4.87 | 5.12 | -0.25 |
| Jun | 4.73 | 4.79 | -0.06 |
| Jul | 4.24 | 4.29 | -0.05 |
| Aug | 3.50 | 3.31 | 0.19 |
| Sep | 3.21 | 3.35 | -0.14 |
| Oct | 3.24 | 3.34 | -0.10 |
| Nov | 3.16 | 3.29 | -0.13 |
| Dec | 3.53 | 3.85 | -0.32 |
45.11 | 46.89 | -1.78 |