| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.42 | 0.38 | 0.04 |
| Feb | 0.55 | 0.51 | 0.04 |
| Mar | 0.87 | 0.79 | 0.08 |
| Apr | 1.53 | 1.57 | -0.04 |
| May | 3.05 | 3.10 | -0.05 |
| Jun | 3.52 | 3.57 | -0.05 |
| Jul | 3.00 | 3.05 | -0.05 |
| Aug | 2.25 | 2.27 | -0.02 |
| Sep | 1.92 | 1.82 | 0.10 |
| Oct | 1.70 | 1.71 | -0.01 |
| Nov | 0.55 | 0.58 | -0.03 |
| Dec | 0.54 | 0.47 | 0.07 |
19.90 | 19.82 | 0.08 |