| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.54 | -0.04 |
| Feb | 2.87 | 2.91 | -0.04 |
| Mar | 3.93 | 4.03 | -0.10 |
| Apr | 4.87 | 5.19 | -0.32 |
| May | 5.13 | 5.31 | -0.18 |
| Jun | 4.96 | 5.23 | -0.27 |
| Jul | 4.33 | 4.48 | -0.15 |
| Aug | 3.65 | 3.87 | -0.22 |
| Sep | 3.37 | 3.41 | -0.04 |
| Oct | 3.53 | 3.54 | -0.01 |
| Nov | 3.64 | 3.72 | -0.08 |
| Dec | 3.63 | 3.71 | -0.08 |
47.41 | 48.94 | -1.53 |