| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.75 | 3.93 | -0.18 |
| Feb | 2.98 | 3.00 | -0.02 |
| Mar | 3.89 | 3.93 | -0.04 |
| Apr | 4.10 | 4.38 | -0.28 |
| May | 4.36 | 4.44 | -0.08 |
| Jun | 4.53 | 4.64 | -0.11 |
| Jul | 4.56 | 4.94 | -0.38 |
| Aug | 4.49 | 4.81 | -0.32 |
| Sep | 4.22 | 4.28 | -0.06 |
| Oct | 3.43 | 3.50 | -0.07 |
| Nov | 3.23 | 3.20 | 0.03 |
| Dec | 3.84 | 3.98 | -0.14 |
47.38 | 49.03 | -1.65 |