| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.65 | -0.24 |
| Feb | 2.73 | 2.92 | -0.19 |
| Mar | 3.89 | 4.19 | -0.30 |
| Apr | 3.85 | 3.94 | -0.09 |
| May | 4.04 | 4.10 | -0.06 |
| Jun | 4.31 | 4.51 | -0.20 |
| Jul | 4.81 | 4.90 | -0.09 |
| Aug | 4.56 | 4.38 | 0.18 |
| Sep | 4.47 | 4.34 | 0.13 |
| Oct | 4.19 | 4.30 | -0.11 |
| Nov | 3.33 | 3.36 | -0.03 |
| Dec | 4.13 | 4.41 | -0.28 |
47.72 | 49.00 | -1.28 |