| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.09 | 4.65 | 0.44 |
| Feb | 4.43 | 4.08 | 0.35 |
| Mar | 4.97 | 4.68 | 0.29 |
| Apr | 4.73 | 4.46 | 0.27 |
| May | 4.54 | 4.32 | 0.22 |
| Jun | 5.05 | 4.52 | 0.53 |
| Jul | 5.11 | 4.92 | 0.19 |
| Aug | 5.81 | 5.08 | 0.73 |
| Sep | 4.83 | 4.56 | 0.27 |
| Oct | 4.11 | 3.97 | 0.14 |
| Nov | 4.34 | 4.10 | 0.24 |
| Dec | 5.54 | 5.12 | 0.42 |
58.55 | 54.46 | 4.09 |