| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.65 | 3.66 | -0.01 |
| Feb | 3.04 | 2.97 | 0.07 |
| Mar | 4.13 | 4.15 | -0.02 |
| Apr | 3.65 | 3.70 | -0.05 |
| May | 3.61 | 3.61 | 0.00 |
| Jun | 4.18 | 4.20 | -0.02 |
| Jul | 4.59 | 4.44 | 0.15 |
| Aug | 4.38 | 4.33 | 0.05 |
| Sep | 5.01 | 5.05 | -0.04 |
| Oct | 3.36 | 3.40 | -0.04 |
| Nov | 3.30 | 3.37 | -0.07 |
| Dec | 3.59 | 3.49 | 0.10 |
46.49 | 46.37 | 0.12 |