| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.66 | -0.14 |
| Feb | 3.47 | 3.61 | -0.14 |
| Mar | 3.63 | 3.72 | -0.09 |
| Apr | 3.14 | 3.22 | -0.08 |
| May | 3.46 | 3.61 | -0.15 |
| Jun | 5.08 | 5.27 | -0.19 |
| Jul | 5.37 | 5.54 | -0.17 |
| Aug | 5.21 | 5.48 | -0.27 |
| Sep | 4.45 | 4.62 | -0.17 |
| Oct | 3.49 | 3.59 | -0.10 |
| Nov | 2.76 | 2.82 | -0.06 |
| Dec | 3.66 | 3.65 | 0.01 |
47.24 | 48.79 | -1.55 |