| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.83 | 0.91 | -0.08 |
| Feb | 0.81 | 0.82 | -0.01 |
| Mar | 1.12 | 1.12 | 0.00 |
| Apr | 1.96 | 2.02 | -0.06 |
| May | 3.03 | 3.00 | 0.03 |
| Jun | 4.28 | 4.24 | 0.04 |
| Jul | 3.98 | 4.08 | -0.10 |
| Aug | 3.42 | 3.32 | 0.10 |
| Sep | 3.55 | 3.56 | -0.01 |
| Oct | 2.65 | 2.66 | -0.01 |
| Nov | 1.46 | 1.47 | -0.01 |
| Dec | 1.04 | 1.18 | -0.14 |
28.13 | 28.38 | -0.25 |