| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.56 | 0.03 |
| Feb | 2.82 | 2.79 | 0.03 |
| Mar | 4.27 | 4.27 | 0.00 |
| Apr | 3.58 | 3.69 | -0.11 |
| May | 3.94 | 3.90 | 0.04 |
| Jun | 4.28 | 4.37 | -0.09 |
| Jul | 4.77 | 4.78 | -0.01 |
| Aug | 4.33 | 4.46 | -0.13 |
| Sep | 3.97 | 4.04 | -0.07 |
| Oct | 4.11 | 3.99 | 0.12 |
| Nov | 3.36 | 3.30 | 0.06 |
| Dec | 4.30 | 4.33 | -0.03 |
47.32 | 47.48 | -0.16 |