| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.93 | 3.71 | 0.22 |
| Feb | 3.32 | 3.33 | -0.01 |
| Mar | 4.01 | 3.84 | 0.17 |
| Apr | 4.32 | 4.15 | 0.17 |
| May | 4.60 | 4.75 | -0.15 |
| Jun | 4.72 | 4.43 | 0.29 |
| Jul | 5.14 | 5.31 | -0.17 |
| Aug | 4.29 | 4.24 | 0.05 |
| Sep | 3.96 | 3.57 | 0.39 |
| Oct | 3.42 | 3.10 | 0.32 |
| Nov | 3.44 | 3.06 | 0.38 |
| Dec | 3.84 | 3.41 | 0.43 |
48.99 | 46.90 | 2.09 |