| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.65 | 4.72 | -0.07 |
| Feb | 4.39 | 4.46 | -0.07 |
| Mar | 5.09 | 5.14 | -0.05 |
| Apr | 5.03 | 5.17 | -0.14 |
| May | 4.38 | 4.41 | -0.03 |
| Jun | 4.36 | 4.47 | -0.11 |
| Jul | 3.44 | 3.51 | -0.07 |
| Aug | 3.17 | 3.18 | -0.01 |
| Sep | 3.54 | 3.68 | -0.14 |
| Oct | 4.61 | 4.54 | 0.07 |
| Nov | 4.22 | 4.30 | -0.08 |
| Dec | 4.98 | 5.08 | -0.10 |
51.86 | 52.66 | -0.80 |