| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.51 | 4.60 | -0.09 |
| Feb | 4.55 | 4.58 | -0.03 |
| Mar | 4.71 | 4.89 | -0.18 |
| Apr | 4.20 | 4.39 | -0.19 |
| May | 3.02 | 3.07 | -0.05 |
| Jun | 4.39 | 4.49 | -0.10 |
| Jul | 5.24 | 5.23 | 0.01 |
| Aug | 4.46 | 4.21 | 0.25 |
| Sep | 3.97 | 4.19 | -0.22 |
| Oct | 2.75 | 2.68 | 0.07 |
| Nov | 3.38 | 3.36 | 0.02 |
| Dec | 5.25 | 4.93 | 0.32 |
50.43 | 50.62 | -0.19 |