| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.79 | 0.89 | -0.10 |
| Feb | 0.83 | 0.89 | -0.06 |
| Mar | 1.64 | 1.71 | -0.07 |
| Apr | 2.95 | 2.96 | -0.01 |
| May | 4.27 | 4.29 | -0.02 |
| Jun | 4.83 | 4.83 | 0.00 |
| Jul | 4.22 | 4.17 | 0.05 |
| Aug | 4.44 | 4.62 | -0.18 |
| Sep | 3.20 | 3.28 | -0.08 |
| Oct | 2.57 | 2.64 | -0.07 |
| Nov | 1.58 | 1.63 | -0.05 |
| Dec | 1.09 | 1.22 | -0.13 |
32.41 | 33.13 | -0.72 |