| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.15 | 1.24 | -0.09 |
| Feb | 1.51 | 1.63 | -0.12 |
| Mar | 2.39 | 2.51 | -0.12 |
| Apr | 3.96 | 4.14 | -0.18 |
| May | 5.39 | 5.46 | -0.07 |
| Jun | 5.11 | 5.47 | -0.36 |
| Jul | 4.58 | 4.52 | 0.06 |
| Aug | 4.47 | 4.44 | 0.03 |
| Sep | 3.87 | 4.26 | -0.39 |
| Oct | 3.23 | 3.35 | -0.12 |
| Nov | 2.13 | 2.21 | -0.08 |
| Dec | 1.57 | 1.70 | -0.13 |
39.36 | 40.93 | -1.57 |