| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.48 | 3.97 | 0.51 |
| Feb | 3.97 | 3.77 | 0.20 |
| Mar | 4.26 | 4.53 | -0.27 |
| Apr | 4.36 | 4.53 | -0.17 |
| May | 5.10 | 4.79 | 0.31 |
| Jun | 4.60 | 5.24 | -0.64 |
| Jul | 5.55 | 5.69 | -0.14 |
| Aug | 4.49 | 4.72 | -0.23 |
| Sep | 3.84 | 3.82 | 0.02 |
| Oct | 3.81 | 3.24 | 0.57 |
| Nov | 3.75 | 3.33 | 0.42 |
| Dec | 4.59 | 4.26 | 0.33 |
52.80 | 51.89 | 0.91 |