| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.55 | 4.68 | -0.13 |
| Feb | 4.62 | 4.73 | -0.11 |
| Mar | 5.00 | 5.09 | -0.09 |
| Apr | 4.26 | 4.30 | -0.04 |
| May | 3.78 | 3.82 | -0.04 |
| Jun | 3.98 | 4.12 | -0.14 |
| Jul | 4.17 | 4.48 | -0.31 |
| Aug | 3.69 | 3.96 | -0.27 |
| Sep | 3.58 | 3.68 | -0.10 |
| Oct | 3.28 | 3.49 | -0.21 |
| Nov | 3.99 | 4.09 | -0.10 |
| Dec | 4.72 | 4.79 | -0.07 |
49.62 | 51.23 | -1.61 |