| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.62 | -0.13 |
| Feb | 2.75 | 2.93 | -0.18 |
| Mar | 3.93 | 4.21 | -0.28 |
| Apr | 3.82 | 3.93 | -0.11 |
| May | 4.11 | 4.22 | -0.11 |
| Jun | 4.38 | 4.54 | -0.16 |
| Jul | 5.08 | 5.11 | -0.03 |
| Aug | 4.39 | 4.51 | -0.12 |
| Sep | 4.47 | 4.43 | 0.04 |
| Oct | 4.19 | 4.39 | -0.20 |
| Nov | 3.39 | 3.43 | -0.04 |
| Dec | 4.20 | 4.45 | -0.25 |
48.20 | 49.77 | -1.57 |