| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.09 | 3.43 | -0.34 |
| Feb | 2.71 | 2.84 | -0.13 |
| Mar | 3.44 | 3.53 | -0.09 |
| Apr | 3.51 | 3.66 | -0.15 |
| May | 3.80 | 3.56 | 0.24 |
| Jun | 4.58 | 4.25 | 0.33 |
| Jul | 4.44 | 4.36 | 0.08 |
| Aug | 4.39 | 4.56 | -0.17 |
| Sep | 4.43 | 4.46 | -0.03 |
| Oct | 4.41 | 4.60 | -0.19 |
| Nov | 3.29 | 3.37 | -0.08 |
| Dec | 3.72 | 4.21 | -0.49 |
45.81 | 46.83 | -1.02 |