| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.69 | -0.18 |
| Feb | 3.13 | 3.34 | -0.21 |
| Mar | 4.18 | 4.41 | -0.23 |
| Apr | 4.30 | 4.57 | -0.27 |
| May | 3.87 | 4.01 | -0.14 |
| Jun | 4.28 | 4.31 | -0.03 |
| Jul | 3.78 | 3.91 | -0.13 |
| Aug | 3.88 | 4.20 | -0.32 |
| Sep | 4.41 | 4.45 | -0.04 |
| Oct | 4.54 | 4.84 | -0.30 |
| Nov | 3.77 | 3.83 | -0.06 |
| Dec | 4.32 | 4.53 | -0.21 |
47.97 | 50.09 | -2.12 |