| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.03 | 0.99 | 0.04 |
| Feb | 1.11 | 1.10 | 0.01 |
| Mar | 1.89 | 1.94 | -0.05 |
| Apr | 3.12 | 3.08 | 0.04 |
| May | 4.14 | 4.30 | -0.16 |
| Jun | 4.80 | 5.06 | -0.26 |
| Jul | 3.75 | 3.85 | -0.10 |
| Aug | 4.19 | 4.17 | 0.02 |
| Sep | 3.59 | 3.57 | 0.02 |
| Oct | 2.83 | 2.71 | 0.12 |
| Nov | 1.82 | 1.80 | 0.02 |
| Dec | 1.38 | 1.39 | -0.01 |
33.65 | 33.96 | -0.31 |