| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.97 | 3.07 | -0.10 |
| Feb | 2.57 | 2.65 | -0.08 |
| Mar | 3.52 | 3.80 | -0.28 |
| Apr | 3.32 | 3.40 | -0.08 |
| May | 4.19 | 4.56 | -0.37 |
| Jun | 4.15 | 4.43 | -0.28 |
| Jul | 4.30 | 4.39 | -0.09 |
| Aug | 3.52 | 3.69 | -0.17 |
| Sep | 4.12 | 4.41 | -0.29 |
| Oct | 3.70 | 3.77 | -0.07 |
| Nov | 3.07 | 3.19 | -0.12 |
| Dec | 3.46 | 3.60 | -0.14 |
42.89 | 44.96 | -2.07 |