| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.57 | -0.07 |
| Feb | 2.89 | 2.94 | -0.05 |
| Mar | 4.05 | 3.97 | 0.08 |
| Apr | 3.59 | 3.68 | -0.09 |
| May | 3.74 | 3.91 | -0.17 |
| Jun | 4.43 | 4.22 | 0.21 |
| Jul | 5.24 | 5.43 | -0.19 |
| Aug | 4.97 | 5.29 | -0.32 |
| Sep | 4.81 | 5.10 | -0.29 |
| Oct | 4.00 | 4.42 | -0.42 |
| Nov | 3.07 | 3.14 | -0.07 |
| Dec | 3.62 | 3.68 | -0.06 |
47.91 | 49.35 | -1.44 |