| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.43 | 0.43 | 0.00 |
| Feb | 0.50 | 0.55 | -0.05 |
| Mar | 1.20 | 1.40 | -0.20 |
| Apr | 2.06 | 2.17 | -0.11 |
| May | 2.66 | 2.87 | -0.21 |
| Jun | 1.79 | 1.89 | -0.10 |
| Jul | 1.59 | 1.85 | -0.26 |
| Aug | 1.43 | 1.50 | -0.07 |
| Sep | 1.39 | 1.48 | -0.09 |
| Oct | 1.16 | 1.28 | -0.12 |
| Nov | 0.73 | 0.83 | -0.10 |
| Dec | 0.47 | 0.52 | -0.05 |
15.41 | 16.77 | -1.36 |