| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.79 | -0.01 |
| Feb | 0.82 | 0.80 | 0.02 |
| Mar | 1.60 | 1.47 | 0.13 |
| Apr | 2.89 | 2.81 | 0.08 |
| May | 4.15 | 4.17 | -0.02 |
| Jun | 4.52 | 4.52 | 0.00 |
| Jul | 4.35 | 4.42 | -0.07 |
| Aug | 4.24 | 4.02 | 0.22 |
| Sep | 3.30 | 3.13 | 0.17 |
| Oct | 2.82 | 2.75 | 0.07 |
| Nov | 1.71 | 1.59 | 0.12 |
| Dec | 1.13 | 1.13 | 0.00 |
32.31 | 31.60 | 0.71 |