| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.21 | 1.29 | -0.08 |
| Feb | 1.53 | 1.46 | 0.07 |
| Mar | 2.33 | 2.31 | 0.02 |
| Apr | 3.66 | 3.55 | 0.11 |
| May | 4.97 | 4.76 | 0.21 |
| Jun | 5.12 | 5.07 | 0.05 |
| Jul | 4.11 | 4.02 | 0.09 |
| Aug | 4.14 | 4.07 | 0.07 |
| Sep | 3.66 | 3.32 | 0.34 |
| Oct | 2.97 | 2.82 | 0.15 |
| Nov | 2.17 | 2.12 | 0.05 |
| Dec | 1.67 | 1.66 | 0.01 |
37.54 | 36.45 | 1.09 |