| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.87 | 0.81 | 0.06 |
| Feb | 0.93 | 0.84 | 0.09 |
| Mar | 1.79 | 1.63 | 0.16 |
| Apr | 3.14 | 2.87 | 0.27 |
| May | 4.39 | 4.23 | 0.16 |
| Jun | 4.91 | 4.95 | -0.04 |
| Jul | 4.32 | 4.03 | 0.29 |
| Aug | 4.42 | 4.41 | 0.01 |
| Sep | 3.39 | 3.38 | 0.01 |
| Oct | 2.54 | 2.49 | 0.05 |
| Nov | 1.62 | 1.53 | 0.09 |
| Dec | 1.23 | 1.16 | 0.07 |
33.55 | 32.33 | 1.22 |