| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.66 | 3.90 | -0.24 |
| Feb | 2.90 | 3.05 | -0.15 |
| Mar | 3.84 | 4.08 | -0.24 |
| Apr | 3.77 | 3.96 | -0.19 |
| May | 4.00 | 4.13 | -0.13 |
| Jun | 4.25 | 4.39 | -0.14 |
| Jul | 4.12 | 4.06 | 0.06 |
| Aug | 4.15 | 4.26 | -0.11 |
| Sep | 4.64 | 4.73 | -0.09 |
| Oct | 3.53 | 3.49 | 0.04 |
| Nov | 3.25 | 3.31 | -0.06 |
| Dec | 3.47 | 3.51 | -0.04 |
45.58 | 46.87 | -1.29 |