| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.49 | -0.09 |
| Feb | 3.09 | 3.18 | -0.09 |
| Mar | 4.33 | 4.54 | -0.21 |
| Apr | 5.13 | 5.32 | -0.19 |
| May | 5.45 | 5.44 | 0.01 |
| Jun | 4.63 | 4.66 | -0.03 |
| Jul | 4.30 | 4.47 | -0.17 |
| Aug | 3.12 | 3.15 | -0.03 |
| Sep | 3.59 | 3.72 | -0.13 |
| Oct | 3.44 | 3.49 | -0.05 |
| Nov | 4.05 | 4.10 | -0.05 |
| Dec | 3.86 | 3.95 | -0.09 |
48.39 | 49.51 | -1.12 |