| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.86 | 3.93 | -0.07 |
| Feb | 4.18 | 4.19 | -0.01 |
| Mar | 4.69 | 4.78 | -0.09 |
| Apr | 4.81 | 4.82 | -0.01 |
| May | 5.30 | 5.32 | -0.02 |
| Jun | 4.34 | 4.65 | -0.31 |
| Jul | 4.45 | 4.81 | -0.36 |
| Aug | 3.63 | 3.51 | 0.12 |
| Sep | 3.70 | 3.59 | 0.11 |
| Oct | 3.64 | 3.71 | -0.07 |
| Nov | 3.65 | 3.69 | -0.04 |
| Dec | 4.67 | 4.71 | -0.04 |
50.92 | 51.71 | -0.79 |