| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.34 | 4.25 | 0.09 |
| Feb | 4.04 | 4.09 | -0.05 |
| Mar | 4.57 | 4.60 | -0.03 |
| Apr | 4.23 | 4.25 | -0.02 |
| May | 4.43 | 4.53 | -0.10 |
| Jun | 4.46 | 4.43 | 0.03 |
| Jul | 3.07 | 3.08 | -0.01 |
| Aug | 3.10 | 3.20 | -0.10 |
| Sep | 3.58 | 3.56 | 0.02 |
| Oct | 4.32 | 4.41 | -0.09 |
| Nov | 4.07 | 4.18 | -0.11 |
| Dec | 4.83 | 4.82 | 0.01 |
49.04 | 49.40 | -0.36 |