| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.36 | 3.51 | -0.15 |
| Feb | 2.79 | 2.94 | -0.15 |
| Mar | 3.75 | 4.09 | -0.34 |
| Apr | 3.81 | 3.86 | -0.05 |
| May | 3.74 | 3.95 | -0.21 |
| Jun | 4.44 | 4.51 | -0.07 |
| Jul | 4.37 | 4.52 | -0.15 |
| Aug | 4.33 | 5.03 | -0.70 |
| Sep | 4.37 | 4.45 | -0.08 |
| Oct | 4.69 | 4.79 | -0.10 |
| Nov | 3.66 | 3.76 | -0.10 |
| Dec | 4.10 | 4.42 | -0.32 |
47.41 | 49.83 | -2.42 |