| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.43 | -0.04 |
| Feb | 2.88 | 2.92 | -0.04 |
| Mar | 4.02 | 4.05 | -0.03 |
| Apr | 3.39 | 3.52 | -0.13 |
| May | 3.59 | 3.66 | -0.07 |
| Jun | 3.99 | 3.92 | 0.07 |
| Jul | 4.39 | 4.51 | -0.12 |
| Aug | 4.55 | 5.19 | -0.64 |
| Sep | 4.11 | 4.29 | -0.18 |
| Oct | 3.87 | 4.11 | -0.24 |
| Nov | 3.09 | 3.11 | -0.02 |
| Dec | 3.55 | 3.76 | -0.21 |
44.82 | 46.47 | -1.65 |