| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.89 | 2.07 | -0.18 |
| Feb | 1.84 | 1.97 | -0.13 |
| Mar | 2.33 | 2.29 | 0.04 |
| Apr | 3.83 | 3.82 | 0.01 |
| May | 4.73 | 4.72 | 0.01 |
| Jun | 4.45 | 4.40 | 0.05 |
| Jul | 3.73 | 3.74 | -0.01 |
| Aug | 3.86 | 4.05 | -0.19 |
| Sep | 3.32 | 3.28 | 0.04 |
| Oct | 3.40 | 3.46 | -0.06 |
| Nov | 2.51 | 2.62 | -0.11 |
| Dec | 2.09 | 2.19 | -0.10 |
37.98 | 38.61 | -0.63 |