| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.27 | 3.28 | -0.01 |
| Feb | 3.24 | 3.37 | -0.13 |
| Mar | 4.46 | 4.56 | -0.10 |
| Apr | 5.37 | 5.51 | -0.14 |
| May | 5.36 | 5.50 | -0.14 |
| Jun | 3.98 | 4.00 | -0.02 |
| Jul | 4.18 | 4.21 | -0.03 |
| Aug | 3.37 | 3.45 | -0.08 |
| Sep | 3.31 | 3.41 | -0.10 |
| Oct | 3.77 | 3.75 | 0.02 |
| Nov | 4.43 | 4.60 | -0.17 |
| Dec | 3.68 | 3.85 | -0.17 |
48.42 | 49.49 | -1.07 |