| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.22 | 3.39 | -0.17 |
| Feb | 3.13 | 3.04 | 0.09 |
| Mar | 4.16 | 4.14 | 0.02 |
| Apr | 4.54 | 4.66 | -0.12 |
| May | 4.89 | 4.98 | -0.09 |
| Jun | 4.87 | 4.73 | 0.14 |
| Jul | 4.38 | 4.33 | 0.05 |
| Aug | 3.43 | 3.33 | 0.10 |
| Sep | 3.26 | 3.28 | -0.02 |
| Oct | 3.28 | 3.28 | 0.00 |
| Nov | 3.15 | 3.22 | -0.07 |
| Dec | 3.67 | 3.77 | -0.10 |
45.98 | 46.15 | -0.17 |