| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.46 | 5.54 | -0.08 |
| Feb | 5.17 | 5.09 | 0.08 |
| Mar | 5.40 | 5.50 | -0.10 |
| Apr | 4.33 | 4.31 | 0.02 |
| May | 4.00 | 4.06 | -0.06 |
| Jun | 5.42 | 5.68 | -0.26 |
| Jul | 5.49 | 6.39 | -0.90 |
| Aug | 4.84 | 5.09 | -0.25 |
| Sep | 4.30 | 4.41 | -0.11 |
| Oct | 3.59 | 3.56 | 0.03 |
| Nov | 4.25 | 4.35 | -0.10 |
| Dec | 5.65 | 5.76 | -0.11 |
57.90 | 59.74 | -1.84 |