| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.29 | 4.42 | -0.13 |
| Feb | 3.56 | 3.87 | -0.31 |
| Mar | 4.30 | 4.20 | 0.10 |
| Apr | 4.49 | 4.46 | 0.03 |
| May | 4.12 | 4.18 | -0.06 |
| Jun | 4.25 | 4.12 | 0.13 |
| Jul | 4.83 | 4.23 | 0.60 |
| Aug | 4.73 | 4.79 | -0.06 |
| Sep | 4.52 | 4.88 | -0.36 |
| Oct | 3.72 | 3.45 | 0.27 |
| Nov | 3.75 | 3.82 | -0.07 |
| Dec | 4.14 | 4.54 | -0.40 |
50.70 | 50.96 | -0.26 |