| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.51 | 2.64 | -0.13 |
| Feb | 2.05 | 2.22 | -0.17 |
| Mar | 2.72 | 2.65 | 0.07 |
| Apr | 3.78 | 3.71 | 0.07 |
| May | 4.25 | 4.09 | 0.16 |
| Jun | 4.69 | 4.57 | 0.12 |
| Jul | 4.68 | 4.72 | -0.04 |
| Aug | 4.08 | 4.09 | -0.01 |
| Sep | 3.18 | 3.23 | -0.05 |
| Oct | 3.13 | 3.18 | -0.05 |
| Nov | 2.88 | 2.78 | 0.10 |
| Dec | 2.36 | 2.35 | 0.01 |
40.31 | 40.23 | 0.08 |