| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.84 | -0.11 |
| Feb | 0.79 | 0.87 | -0.08 |
| Mar | 1.52 | 1.60 | -0.08 |
| Apr | 2.82 | 3.00 | -0.18 |
| May | 4.15 | 4.34 | -0.19 |
| Jun | 4.39 | 4.48 | -0.09 |
| Jul | 4.25 | 4.19 | 0.06 |
| Aug | 4.19 | 4.19 | 0.00 |
| Sep | 3.18 | 3.20 | -0.02 |
| Oct | 2.81 | 2.71 | 0.10 |
| Nov | 1.55 | 1.66 | -0.11 |
| Dec | 1.03 | 1.22 | -0.19 |
31.41 | 32.30 | -0.89 |