| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.29 | 1.47 | -0.18 |
| Feb | 1.38 | 1.45 | -0.07 |
| Mar | 2.12 | 2.20 | -0.08 |
| Apr | 3.87 | 3.80 | 0.07 |
| May | 4.33 | 4.44 | -0.11 |
| Jun | 5.45 | 5.68 | -0.23 |
| Jul | 4.51 | 4.62 | -0.11 |
| Aug | 4.12 | 4.38 | -0.26 |
| Sep | 3.69 | 3.66 | 0.03 |
| Oct | 2.94 | 3.01 | -0.07 |
| Nov | 2.33 | 2.41 | -0.08 |
| Dec | 1.65 | 1.82 | -0.17 |
37.68 | 38.94 | -1.26 |