| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.81 | -0.12 |
| Feb | 0.79 | 0.89 | -0.10 |
| Mar | 1.45 | 1.56 | -0.11 |
| Apr | 2.77 | 2.90 | -0.13 |
| May | 4.13 | 4.24 | -0.11 |
| Jun | 4.41 | 4.43 | -0.02 |
| Jul | 4.15 | 4.39 | -0.24 |
| Aug | 3.98 | 4.09 | -0.11 |
| Sep | 3.15 | 3.33 | -0.18 |
| Oct | 2.80 | 2.77 | 0.03 |
| Nov | 1.53 | 1.64 | -0.11 |
| Dec | 1.02 | 1.17 | -0.15 |
30.87 | 32.22 | -1.35 |