| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.69 | -0.13 |
| Feb | 2.93 | 2.97 | -0.04 |
| Mar | 4.24 | 4.24 | 0.00 |
| Apr | 3.71 | 3.79 | -0.08 |
| May | 3.91 | 3.85 | 0.06 |
| Jun | 4.24 | 4.31 | -0.07 |
| Jul | 4.40 | 4.54 | -0.14 |
| Aug | 4.40 | 4.39 | 0.01 |
| Sep | 3.99 | 4.00 | -0.01 |
| Oct | 4.10 | 4.20 | -0.10 |
| Nov | 3.34 | 3.36 | -0.02 |
| Dec | 4.25 | 4.43 | -0.18 |
47.07 | 47.77 | -0.70 |