| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.87 | -0.50 |
| Feb | 2.94 | 3.40 | -0.46 |
| Mar | 4.31 | 4.86 | -0.55 |
| Apr | 4.02 | 4.39 | -0.37 |
| May | 3.43 | 3.27 | 0.16 |
| Jun | 3.61 | 3.60 | 0.01 |
| Jul | 3.02 | 2.97 | 0.05 |
| Aug | 3.60 | 3.65 | -0.05 |
| Sep | 3.89 | 3.57 | 0.32 |
| Oct | 4.30 | 4.57 | -0.27 |
| Nov | 3.54 | 3.93 | -0.39 |
| Dec | 4.19 | 4.75 | -0.56 |
44.22 | 46.83 | -2.61 |