| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.63 | 0.61 | 0.02 |
| Feb | 0.63 | 0.60 | 0.03 |
| Mar | 1.40 | 1.39 | 0.01 |
| Apr | 1.94 | 1.90 | 0.04 |
| May | 3.03 | 3.02 | 0.01 |
| Jun | 3.60 | 3.42 | 0.18 |
| Jul | 3.22 | 3.05 | 0.17 |
| Aug | 2.94 | 3.02 | -0.08 |
| Sep | 1.55 | 1.49 | 0.06 |
| Oct | 2.01 | 1.96 | 0.05 |
| Nov | 0.79 | 0.77 | 0.02 |
| Dec | 0.92 | 0.91 | 0.01 |
22.66 | 22.14 | 0.52 |