| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.32 | 4.33 | -0.01 |
| Feb | 3.99 | 4.17 | -0.18 |
| Mar | 4.37 | 4.28 | 0.09 |
| Apr | 3.47 | 3.61 | -0.14 |
| May | 2.73 | 2.77 | -0.04 |
| Jun | 4.52 | 4.59 | -0.07 |
| Jul | 4.51 | 4.85 | -0.34 |
| Aug | 4.95 | 4.69 | 0.26 |
| Sep | 3.69 | 3.67 | 0.02 |
| Oct | 2.65 | 2.56 | 0.09 |
| Nov | 2.86 | 2.84 | 0.02 |
| Dec | 4.43 | 4.37 | 0.06 |
46.49 | 46.73 | -0.24 |