| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.42 | 4.48 | -0.06 |
| Feb | 3.65 | 3.67 | -0.02 |
| Mar | 3.71 | 3.78 | -0.07 |
| Apr | 3.83 | 3.90 | -0.07 |
| May | 4.59 | 4.81 | -0.22 |
| Jun | 4.78 | 5.02 | -0.24 |
| Jul | 3.52 | 3.36 | 0.16 |
| Aug | 4.09 | 4.41 | -0.32 |
| Sep | 4.34 | 4.23 | 0.11 |
| Oct | 5.24 | 4.82 | 0.42 |
| Nov | 4.56 | 4.67 | -0.11 |
| Dec | 4.80 | 4.62 | 0.18 |
51.53 | 51.77 | -0.24 |