| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.07 | 1.12 | -0.05 |
| Feb | 1.13 | 1.25 | -0.12 |
| Mar | 1.58 | 1.52 | 0.06 |
| Apr | 1.97 | 2.02 | -0.05 |
| May | 1.93 | 1.89 | 0.04 |
| Jun | 1.07 | 1.04 | 0.03 |
| Jul | 2.18 | 2.04 | 0.14 |
| Aug | 2.14 | 2.53 | -0.39 |
| Sep | 1.44 | 1.58 | -0.14 |
| Oct | 1.38 | 1.34 | 0.04 |
| Nov | 1.00 | 1.11 | -0.11 |
| Dec | 1.02 | 1.13 | -0.11 |
17.91 | 18.57 | -0.66 |