| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.82 | -0.04 |
| Feb | 0.88 | 0.85 | 0.03 |
| Mar | 1.52 | 1.37 | 0.15 |
| Apr | 2.76 | 2.85 | -0.09 |
| May | 4.06 | 3.96 | 0.10 |
| Jun | 4.39 | 4.33 | 0.06 |
| Jul | 4.28 | 4.25 | 0.03 |
| Aug | 4.11 | 3.89 | 0.22 |
| Sep | 3.31 | 3.39 | -0.08 |
| Oct | 2.92 | 2.87 | 0.05 |
| Nov | 1.69 | 1.58 | 0.11 |
| Dec | 1.14 | 1.17 | -0.03 |
31.84 | 31.33 | 0.51 |