| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.96 | 4.14 | -0.18 |
| Feb | 3.51 | 3.57 | -0.06 |
| Mar | 4.91 | 4.98 | -0.07 |
| Apr | 4.52 | 4.60 | -0.08 |
| May | 3.56 | 3.51 | 0.05 |
| Jun | 4.12 | 4.11 | 0.01 |
| Jul | 3.33 | 3.44 | -0.11 |
| Aug | 3.81 | 3.79 | 0.02 |
| Sep | 3.90 | 4.02 | -0.12 |
| Oct | 4.79 | 4.87 | -0.08 |
| Nov | 4.13 | 4.27 | -0.14 |
| Dec | 4.73 | 5.01 | -0.28 |
49.27 | 50.31 | -1.04 |