| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.72 | 3.70 | 0.02 |
| Feb | 4.17 | 4.05 | 0.12 |
| Mar | 5.06 | 5.02 | 0.04 |
| Apr | 5.63 | 5.41 | 0.22 |
| May | 5.42 | 5.68 | -0.26 |
| Jun | 3.42 | 3.47 | -0.05 |
| Jul | 3.54 | 3.63 | -0.09 |
| Aug | 3.61 | 3.39 | 0.22 |
| Sep | 3.51 | 3.40 | 0.11 |
| Oct | 4.17 | 3.98 | 0.19 |
| Nov | 4.71 | 5.11 | -0.40 |
| Dec | 5.09 | 5.15 | -0.06 |
52.05 | 51.99 | 0.06 |