| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.79 | 3.95 | -0.16 |
| Feb | 3.24 | 3.39 | -0.15 |
| Mar | 4.15 | 4.21 | -0.06 |
| Apr | 4.03 | 4.33 | -0.30 |
| May | 3.97 | 3.99 | -0.02 |
| Jun | 4.53 | 4.71 | -0.18 |
| Jul | 4.18 | 4.31 | -0.13 |
| Aug | 4.53 | 4.52 | 0.01 |
| Sep | 3.87 | 3.95 | -0.08 |
| Oct | 3.52 | 3.33 | 0.19 |
| Nov | 3.47 | 3.54 | -0.07 |
| Dec | 3.95 | 4.17 | -0.22 |
47.23 | 48.40 | -1.17 |