| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.92 | -0.18 |
| Feb | 0.87 | 0.89 | -0.02 |
| Mar | 1.59 | 1.69 | -0.10 |
| Apr | 2.99 | 2.84 | 0.15 |
| May | 4.07 | 4.18 | -0.11 |
| Jun | 4.68 | 5.07 | -0.39 |
| Jul | 3.98 | 3.93 | 0.05 |
| Aug | 3.98 | 4.10 | -0.12 |
| Sep | 3.15 | 3.24 | -0.09 |
| Oct | 2.31 | 2.41 | -0.10 |
| Nov | 1.48 | 1.49 | -0.01 |
| Dec | 1.09 | 1.19 | -0.10 |
30.93 | 31.95 | -1.02 |