| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.44 | 0.43 | 0.01 |
| Feb | 0.59 | 0.61 | -0.02 |
| Mar | 0.81 | 0.80 | 0.01 |
| Apr | 1.83 | 1.97 | -0.14 |
| May | 3.13 | 3.12 | 0.01 |
| Jun | 3.46 | 3.52 | -0.06 |
| Jul | 2.90 | 2.98 | -0.08 |
| Aug | 2.36 | 2.42 | -0.06 |
| Sep | 1.95 | 1.89 | 0.06 |
| Oct | 1.77 | 1.71 | 0.06 |
| Nov | 0.55 | 0.59 | -0.04 |
| Dec | 0.49 | 0.52 | -0.03 |
20.28 | 20.56 | -0.28 |