| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.93 | 1.08 | -0.15 |
| Feb | 1.02 | 1.12 | -0.10 |
| Mar | 1.24 | 1.29 | -0.05 |
| Apr | 2.57 | 2.73 | -0.16 |
| May | 3.55 | 3.71 | -0.16 |
| Jun | 3.11 | 3.37 | -0.26 |
| Jul | 2.52 | 2.45 | 0.07 |
| Aug | 1.87 | 1.92 | -0.05 |
| Sep | 1.43 | 1.49 | -0.06 |
| Oct | 1.91 | 2.01 | -0.10 |
| Nov | 1.02 | 1.19 | -0.17 |
| Dec | 0.80 | 0.93 | -0.13 |
21.97 | 23.29 | -1.32 |