| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.13 | 1.23 | -0.10 |
| Feb | 1.50 | 1.61 | -0.11 |
| Mar | 2.38 | 2.50 | -0.12 |
| Apr | 3.91 | 4.08 | -0.17 |
| May | 5.33 | 5.41 | -0.08 |
| Jun | 5.10 | 5.43 | -0.33 |
| Jul | 4.54 | 4.48 | 0.06 |
| Aug | 4.42 | 4.43 | -0.01 |
| Sep | 3.84 | 4.26 | -0.42 |
| Oct | 3.21 | 3.35 | -0.14 |
| Nov | 2.10 | 2.18 | -0.08 |
| Dec | 1.56 | 1.69 | -0.13 |
39.02 | 40.65 | -1.63 |