| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.88 | 4.02 | -0.14 |
| Feb | 3.66 | 3.73 | -0.07 |
| Mar | 4.24 | 4.41 | -0.17 |
| Apr | 3.10 | 3.11 | -0.01 |
| May | 3.17 | 3.34 | -0.17 |
| Jun | 4.27 | 4.38 | -0.11 |
| Jul | 3.96 | 4.19 | -0.23 |
| Aug | 4.30 | 4.59 | -0.29 |
| Sep | 3.72 | 3.92 | -0.20 |
| Oct | 3.14 | 3.12 | 0.02 |
| Nov | 3.23 | 3.32 | -0.09 |
| Dec | 4.14 | 4.17 | -0.03 |
44.81 | 46.30 | -1.49 |