| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.89 | -0.14 |
| Feb | 0.69 | 0.81 | -0.12 |
| Mar | 1.05 | 1.10 | -0.05 |
| Apr | 1.82 | 1.96 | -0.14 |
| May | 2.92 | 2.98 | -0.06 |
| Jun | 4.26 | 4.27 | -0.01 |
| Jul | 3.75 | 3.96 | -0.21 |
| Aug | 3.40 | 3.27 | 0.13 |
| Sep | 3.47 | 3.46 | 0.01 |
| Oct | 2.53 | 2.68 | -0.15 |
| Nov | 1.39 | 1.46 | -0.07 |
| Dec | 0.95 | 1.15 | -0.20 |
26.98 | 27.99 | -1.01 |