| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.27 | 3.43 | -0.16 |
| Feb | 3.24 | 3.38 | -0.14 |
| Mar | 4.28 | 4.41 | -0.13 |
| Apr | 4.09 | 4.27 | -0.18 |
| May | 3.79 | 3.83 | -0.04 |
| Jun | 4.09 | 4.23 | -0.14 |
| Jul | 3.61 | 3.62 | -0.01 |
| Aug | 3.50 | 3.53 | -0.03 |
| Sep | 3.78 | 3.86 | -0.08 |
| Oct | 4.77 | 4.84 | -0.07 |
| Nov | 3.86 | 3.85 | 0.01 |
| Dec | 4.36 | 4.57 | -0.21 |
46.64 | 47.82 | -1.18 |