| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.82 | 3.72 | 0.10 |
| Feb | 3.24 | 3.20 | 0.04 |
| Mar | 4.03 | 4.09 | -0.06 |
| Apr | 3.48 | 3.40 | 0.08 |
| May | 3.79 | 3.88 | -0.09 |
| Jun | 4.88 | 4.78 | 0.10 |
| Jul | 5.90 | 5.69 | 0.21 |
| Aug | 5.87 | 5.97 | -0.10 |
| Sep | 5.71 | 5.75 | -0.04 |
| Oct | 3.80 | 3.96 | -0.16 |
| Nov | 3.30 | 3.33 | -0.03 |
| Dec | 3.43 | 3.36 | 0.07 |
51.25 | 51.13 | 0.12 |