| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.68 | -0.12 |
| Feb | 3.27 | 3.46 | -0.19 |
| Mar | 4.15 | 4.30 | -0.15 |
| Apr | 4.05 | 4.19 | -0.14 |
| May | 4.79 | 5.09 | -0.30 |
| Jun | 4.84 | 5.08 | -0.24 |
| Jul | 5.23 | 5.46 | -0.23 |
| Aug | 3.81 | 4.02 | -0.21 |
| Sep | 3.58 | 3.65 | -0.07 |
| Oct | 3.32 | 3.46 | -0.14 |
| Nov | 3.13 | 3.21 | -0.08 |
| Dec | 3.69 | 3.91 | -0.22 |
47.42 | 49.51 | -2.09 |