| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.62 | 0.04 |
| Feb | 0.88 | 0.94 | -0.06 |
| Mar | 1.16 | 1.25 | -0.09 |
| Apr | 2.34 | 2.38 | -0.04 |
| May | 3.90 | 3.93 | -0.03 |
| Jun | 3.52 | 3.57 | -0.05 |
| Jul | 2.30 | 2.38 | -0.08 |
| Aug | 1.81 | 1.89 | -0.08 |
| Sep | 1.52 | 1.60 | -0.08 |
| Oct | 2.03 | 2.21 | -0.18 |
| Nov | 0.91 | 0.86 | 0.05 |
| Dec | 0.72 | 0.79 | -0.07 |
21.75 | 22.42 | -0.67 |