| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.48 | 4.33 | 0.15 |
| Feb | 4.44 | 4.32 | 0.12 |
| Mar | 4.98 | 4.62 | 0.36 |
| Apr | 4.31 | 4.35 | -0.04 |
| May | 3.66 | 3.72 | -0.06 |
| Jun | 4.40 | 4.26 | 0.14 |
| Jul | 4.73 | 4.71 | 0.02 |
| Aug | 3.36 | 3.40 | -0.04 |
| Sep | 3.35 | 3.47 | -0.12 |
| Oct | 3.12 | 2.74 | 0.38 |
| Nov | 3.79 | 3.48 | 0.31 |
| Dec | 4.82 | 4.91 | -0.09 |
49.44 | 48.31 | 1.13 |