| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.61 | 3.92 | -0.31 |
| Feb | 3.22 | 3.40 | -0.18 |
| Mar | 4.23 | 4.49 | -0.26 |
| Apr | 4.28 | 4.62 | -0.34 |
| May | 3.91 | 4.05 | -0.14 |
| Jun | 4.46 | 4.47 | -0.01 |
| Jul | 4.19 | 4.19 | 0.00 |
| Aug | 4.20 | 4.25 | -0.05 |
| Sep | 4.64 | 4.47 | 0.17 |
| Oct | 4.87 | 5.05 | -0.18 |
| Nov | 4.05 | 4.09 | -0.04 |
| Dec | 4.35 | 4.72 | -0.37 |
50.01 | 51.72 | -1.71 |