| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.37 | 2.47 | -0.10 |
| Feb | 1.97 | 2.05 | -0.08 |
| Mar | 2.72 | 2.70 | 0.02 |
| Apr | 3.90 | 3.89 | 0.01 |
| May | 4.31 | 4.36 | -0.05 |
| Jun | 4.94 | 4.87 | 0.07 |
| Jul | 4.45 | 4.43 | 0.02 |
| Aug | 3.63 | 3.56 | 0.07 |
| Sep | 3.06 | 2.99 | 0.07 |
| Oct | 3.07 | 3.03 | 0.04 |
| Nov | 2.93 | 2.99 | -0.06 |
| Dec | 2.43 | 2.40 | 0.03 |
39.78 | 39.74 | 0.04 |