| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.80 | 0.96 | -0.16 |
| Feb | 0.79 | 0.96 | -0.17 |
| Mar | 1.62 | 1.74 | -0.12 |
| Apr | 2.91 | 2.97 | -0.06 |
| May | 4.09 | 4.24 | -0.15 |
| Jun | 4.69 | 4.93 | -0.24 |
| Jul | 4.14 | 4.33 | -0.19 |
| Aug | 4.49 | 4.41 | 0.08 |
| Sep | 3.33 | 3.28 | 0.05 |
| Oct | 2.63 | 2.78 | -0.15 |
| Nov | 1.55 | 1.69 | -0.14 |
| Dec | 1.13 | 1.32 | -0.19 |
32.17 | 33.61 | -1.44 |