| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.38 | 0.03 |
| Feb | 0.62 | 0.60 | 0.02 |
| Mar | 1.09 | 1.12 | -0.03 |
| Apr | 2.38 | 2.42 | -0.04 |
| May | 3.62 | 3.71 | -0.09 |
| Jun | 3.55 | 3.71 | -0.16 |
| Jul | 3.18 | 3.25 | -0.07 |
| Aug | 2.84 | 2.78 | 0.06 |
| Sep | 1.75 | 1.72 | 0.03 |
| Oct | 1.81 | 1.79 | 0.02 |
| Nov | 0.72 | 0.72 | 0.00 |
| Dec | 0.49 | 0.53 | -0.04 |
22.46 | 22.73 | -0.27 |