| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.02 | 4.99 | 0.03 |
| Feb | 5.30 | 5.28 | 0.02 |
| Mar | 5.21 | 5.27 | -0.06 |
| Apr | 5.66 | 5.56 | 0.10 |
| May | 5.24 | 5.41 | -0.17 |
| Jun | 4.74 | 4.71 | 0.03 |
| Jul | 4.40 | 4.37 | 0.03 |
| Aug | 3.89 | 4.00 | -0.11 |
| Sep | 3.64 | 3.83 | -0.19 |
| Oct | 4.00 | 4.01 | -0.01 |
| Nov | 4.34 | 4.42 | -0.08 |
| Dec | 5.83 | 5.97 | -0.14 |
57.27 | 57.82 | -0.55 |