| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.55 | 1.42 | 0.13 |
| Feb | 1.30 | 1.19 | 0.11 |
| Mar | 1.74 | 1.71 | 0.03 |
| Apr | 2.79 | 2.83 | -0.04 |
| May | 3.41 | 3.42 | -0.01 |
| Jun | 3.79 | 4.07 | -0.28 |
| Jul | 4.06 | 4.30 | -0.24 |
| Aug | 3.35 | 3.42 | -0.07 |
| Sep | 3.65 | 3.65 | 0.00 |
| Oct | 3.69 | 3.56 | 0.13 |
| Nov | 2.16 | 2.11 | 0.05 |
| Dec | 1.84 | 1.72 | 0.12 |
33.33 | 33.40 | -0.07 |