| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.91 | 3.82 | 0.09 |
| Feb | 3.61 | 3.64 | -0.03 |
| Mar | 3.89 | 3.90 | -0.01 |
| Apr | 3.11 | 3.06 | 0.05 |
| May | 3.42 | 3.35 | 0.07 |
| Jun | 4.84 | 5.15 | -0.31 |
| Jul | 5.25 | 5.24 | 0.01 |
| Aug | 5.16 | 5.35 | -0.19 |
| Sep | 4.10 | 4.06 | 0.04 |
| Oct | 3.11 | 3.07 | 0.04 |
| Nov | 2.86 | 2.75 | 0.11 |
| Dec | 3.75 | 3.72 | 0.03 |
47.01 | 47.11 | -0.10 |