| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.15 | 1.25 | -0.10 |
| Feb | 1.52 | 1.65 | -0.13 |
| Mar | 2.37 | 2.50 | -0.13 |
| Apr | 3.97 | 4.14 | -0.17 |
| May | 5.38 | 5.47 | -0.09 |
| Jun | 5.16 | 5.35 | -0.19 |
| Jul | 4.64 | 4.57 | 0.07 |
| Aug | 4.44 | 4.40 | 0.04 |
| Sep | 3.80 | 4.27 | -0.47 |
| Oct | 3.24 | 3.39 | -0.15 |
| Nov | 2.11 | 2.22 | -0.11 |
| Dec | 1.59 | 1.73 | -0.14 |
39.37 | 40.94 | -1.57 |