| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.56 | 1.41 | 0.15 |
| Feb | 1.16 | 0.97 | 0.19 |
| Mar | 1.39 | 1.33 | 0.06 |
| Apr | 1.34 | 1.19 | 0.15 |
| May | 1.47 | 1.48 | -0.01 |
| Jun | 0.83 | 0.77 | 0.06 |
| Jul | 0.22 | 0.23 | -0.01 |
| Aug | 0.17 | 0.19 | -0.02 |
| Sep | 0.45 | 0.41 | 0.04 |
| Oct | 0.91 | 0.79 | 0.12 |
| Nov | 1.33 | 1.17 | 0.16 |
| Dec | 1.70 | 1.57 | 0.13 |
12.53 | 11.51 | 1.02 |