| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.97 | -0.22 |
| Feb | 0.78 | 0.90 | -0.12 |
| Mar | 1.62 | 1.72 | -0.10 |
| Apr | 2.91 | 3.13 | -0.22 |
| May | 4.17 | 4.15 | 0.02 |
| Jun | 4.54 | 4.71 | -0.17 |
| Jul | 4.20 | 4.35 | -0.15 |
| Aug | 4.53 | 4.38 | 0.15 |
| Sep | 3.32 | 3.25 | 0.07 |
| Oct | 2.72 | 2.84 | -0.12 |
| Nov | 1.58 | 1.72 | -0.14 |
| Dec | 1.09 | 1.29 | -0.20 |
32.21 | 33.41 | -1.20 |