| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.93 | 4.19 | -0.26 |
| Feb | 3.56 | 3.69 | -0.13 |
| Mar | 5.23 | 5.31 | -0.08 |
| Apr | 4.38 | 4.48 | -0.10 |
| May | 3.46 | 3.52 | -0.06 |
| Jun | 3.72 | 3.82 | -0.10 |
| Jul | 3.12 | 3.18 | -0.06 |
| Aug | 3.63 | 3.85 | -0.22 |
| Sep | 4.12 | 3.98 | 0.14 |
| Oct | 4.71 | 4.82 | -0.11 |
| Nov | 4.32 | 4.41 | -0.09 |
| Dec | 4.84 | 5.10 | -0.26 |
49.02 | 50.35 | -1.33 |