| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.69 | 4.08 | -0.39 |
| Feb | 3.25 | 3.60 | -0.35 |
| Mar | 4.74 | 5.27 | -0.53 |
| Apr | 4.25 | 4.66 | -0.41 |
| May | 3.50 | 3.55 | -0.05 |
| Jun | 3.66 | 3.89 | -0.23 |
| Jul | 3.10 | 3.20 | -0.10 |
| Aug | 3.68 | 3.93 | -0.25 |
| Sep | 3.90 | 3.97 | -0.07 |
| Oct | 4.58 | 4.77 | -0.19 |
| Nov | 3.87 | 4.22 | -0.35 |
| Dec | 4.59 | 5.07 | -0.48 |
46.81 | 50.21 | -3.40 |