| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.64 | 4.78 | -0.14 |
| Feb | 5.06 | 4.92 | 0.14 |
| Mar | 5.37 | 5.35 | 0.02 |
| Apr | 4.94 | 4.88 | 0.06 |
| May | 4.82 | 4.62 | 0.20 |
| Jun | 4.50 | 4.67 | -0.17 |
| Jul | 4.56 | 4.49 | 0.07 |
| Aug | 3.97 | 3.70 | 0.27 |
| Sep | 3.91 | 4.00 | -0.09 |
| Oct | 3.64 | 3.33 | 0.31 |
| Nov | 3.90 | 3.92 | -0.02 |
| Dec | 5.50 | 5.82 | -0.32 |
54.81 | 54.48 | 0.33 |