| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.82 | -0.13 |
| Feb | 0.78 | 0.89 | -0.11 |
| Mar | 1.47 | 1.58 | -0.11 |
| Apr | 2.79 | 2.94 | -0.15 |
| May | 4.16 | 4.29 | -0.13 |
| Jun | 4.39 | 4.45 | -0.06 |
| Jul | 4.20 | 4.27 | -0.07 |
| Aug | 4.04 | 4.16 | -0.12 |
| Sep | 3.12 | 3.24 | -0.12 |
| Oct | 2.83 | 2.73 | 0.10 |
| Nov | 1.54 | 1.65 | -0.11 |
| Dec | 1.02 | 1.19 | -0.17 |
31.03 | 32.21 | -1.18 |