| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.76 | -0.07 |
| Feb | 0.81 | 0.82 | -0.01 |
| Mar | 1.44 | 1.55 | -0.11 |
| Apr | 2.72 | 2.78 | -0.06 |
| May | 4.00 | 4.09 | -0.09 |
| Jun | 4.36 | 4.35 | 0.01 |
| Jul | 3.98 | 4.04 | -0.06 |
| Aug | 3.94 | 4.09 | -0.15 |
| Sep | 3.16 | 3.20 | -0.04 |
| Oct | 2.66 | 2.68 | -0.02 |
| Nov | 1.43 | 1.49 | -0.06 |
| Dec | 0.98 | 1.11 | -0.13 |
30.17 | 30.96 | -0.79 |