| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.19 | 4.24 | -0.05 |
| Feb | 4.27 | 4.28 | -0.01 |
| Mar | 4.67 | 4.64 | 0.03 |
| Apr | 3.45 | 3.54 | -0.09 |
| May | 3.07 | 3.06 | 0.01 |
| Jun | 4.01 | 4.36 | -0.35 |
| Jul | 3.96 | 4.14 | -0.18 |
| Aug | 4.51 | 4.42 | 0.09 |
| Sep | 3.81 | 3.92 | -0.11 |
| Oct | 2.84 | 2.89 | -0.05 |
| Nov | 3.31 | 3.40 | -0.09 |
| Dec | 4.44 | 4.46 | -0.02 |
46.53 | 47.35 | -0.82 |