| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.60 | -0.12 |
| Feb | 3.05 | 3.15 | -0.10 |
| Mar | 4.53 | 4.71 | -0.18 |
| Apr | 3.47 | 3.67 | -0.20 |
| May | 3.28 | 3.34 | -0.06 |
| Jun | 3.81 | 3.84 | -0.03 |
| Jul | 4.56 | 4.49 | 0.07 |
| Aug | 4.75 | 4.81 | -0.06 |
| Sep | 3.77 | 3.84 | -0.07 |
| Oct | 4.10 | 4.23 | -0.13 |
| Nov | 3.37 | 3.40 | -0.03 |
| Dec | 4.42 | 4.64 | -0.22 |
46.59 | 47.72 | -1.13 |