| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.96 | -0.23 |
| Feb | 0.77 | 0.89 | -0.12 |
| Mar | 1.57 | 1.70 | -0.13 |
| Apr | 2.88 | 3.10 | -0.22 |
| May | 4.13 | 4.28 | -0.15 |
| Jun | 4.46 | 4.61 | -0.15 |
| Jul | 4.20 | 4.31 | -0.11 |
| Aug | 4.38 | 4.23 | 0.15 |
| Sep | 3.29 | 3.32 | -0.03 |
| Oct | 2.75 | 2.78 | -0.03 |
| Nov | 1.55 | 1.72 | -0.17 |
| Dec | 1.02 | 1.30 | -0.28 |
31.73 | 33.20 | -1.47 |