| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.71 | 0.01 |
| Feb | 0.81 | 0.78 | 0.03 |
| Mar | 1.64 | 1.59 | 0.05 |
| Apr | 3.06 | 3.03 | 0.03 |
| May | 4.27 | 4.18 | 0.09 |
| Jun | 4.72 | 4.82 | -0.10 |
| Jul | 3.77 | 3.75 | 0.02 |
| Aug | 3.91 | 3.62 | 0.29 |
| Sep | 3.19 | 3.06 | 0.13 |
| Oct | 2.37 | 2.35 | 0.02 |
| Nov | 1.49 | 1.27 | 0.22 |
| Dec | 0.88 | 1.01 | -0.13 |
30.83 | 30.17 | 0.66 |