| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.99 | 0.96 | 0.03 |
| Feb | 1.32 | 1.36 | -0.04 |
| Mar | 2.17 | 2.20 | -0.03 |
| Apr | 3.99 | 3.91 | 0.08 |
| May | 5.32 | 5.36 | -0.04 |
| Jun | 5.02 | 5.04 | -0.02 |
| Jul | 4.36 | 4.33 | 0.03 |
| Aug | 4.17 | 4.32 | -0.15 |
| Sep | 3.78 | 3.80 | -0.02 |
| Oct | 2.86 | 2.81 | 0.05 |
| Nov | 2.07 | 2.05 | 0.02 |
| Dec | 1.44 | 1.47 | -0.03 |
37.49 | 37.61 | -0.12 |