| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.42 | 3.60 | -0.18 |
| Feb | 2.71 | 2.89 | -0.18 |
| Mar | 3.92 | 4.07 | -0.15 |
| Apr | 3.91 | 4.02 | -0.11 |
| May | 3.97 | 3.98 | -0.01 |
| Jun | 4.53 | 4.75 | -0.22 |
| Jul | 4.46 | 4.52 | -0.06 |
| Aug | 4.43 | 4.55 | -0.12 |
| Sep | 4.43 | 4.25 | 0.18 |
| Oct | 4.34 | 4.56 | -0.22 |
| Nov | 3.54 | 3.68 | -0.14 |
| Dec | 4.21 | 4.37 | -0.16 |
47.87 | 49.24 | -1.37 |