| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.71 | 1.99 | -0.28 |
| Feb | 1.53 | 1.64 | -0.11 |
| Mar | 1.13 | 1.30 | -0.17 |
| Apr | 1.08 | 1.20 | -0.12 |
| May | 1.06 | 1.17 | -0.11 |
| Jun | 0.51 | 0.55 | -0.04 |
| Jul | 1.83 | 1.82 | 0.01 |
| Aug | 2.09 | 2.30 | -0.21 |
| Sep | 2.09 | 2.11 | -0.02 |
| Oct | 1.71 | 1.83 | -0.12 |
| Nov | 1.36 | 1.47 | -0.11 |
| Dec | 1.46 | 1.65 | -0.19 |
17.56 | 19.03 | -1.47 |