| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.80 | -0.10 |
| Feb | 0.81 | 0.90 | -0.09 |
| Mar | 1.46 | 1.56 | -0.10 |
| Apr | 2.73 | 2.90 | -0.17 |
| May | 4.18 | 4.39 | -0.21 |
| Jun | 4.49 | 4.51 | -0.02 |
| Jul | 4.36 | 4.59 | -0.23 |
| Aug | 4.07 | 4.29 | -0.22 |
| Sep | 3.27 | 3.44 | -0.17 |
| Oct | 2.77 | 2.93 | -0.16 |
| Nov | 1.52 | 1.66 | -0.14 |
| Dec | 1.05 | 1.18 | -0.13 |
31.41 | 33.15 | -1.74 |