| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.83 | 0.81 | 0.02 |
| Feb | 0.89 | 0.82 | 0.07 |
| Mar | 1.71 | 1.62 | 0.09 |
| Apr | 3.00 | 2.87 | 0.13 |
| May | 4.33 | 4.27 | 0.06 |
| Jun | 4.90 | 4.92 | -0.02 |
| Jul | 4.31 | 4.07 | 0.24 |
| Aug | 4.48 | 4.51 | -0.03 |
| Sep | 3.31 | 3.43 | -0.12 |
| Oct | 2.56 | 2.55 | 0.01 |
| Nov | 1.59 | 1.55 | 0.04 |
| Dec | 1.18 | 1.15 | 0.03 |
33.09 | 32.57 | 0.52 |