| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.45 | 1.54 | -0.09 |
| Feb | 1.53 | 1.65 | -0.12 |
| Mar | 2.11 | 2.06 | 0.05 |
| Apr | 3.63 | 3.74 | -0.11 |
| May | 4.09 | 4.17 | -0.08 |
| Jun | 5.40 | 5.45 | -0.05 |
| Jul | 4.05 | 3.88 | 0.17 |
| Aug | 4.24 | 4.27 | -0.03 |
| Sep | 3.72 | 3.73 | -0.01 |
| Oct | 2.82 | 2.91 | -0.09 |
| Nov | 2.37 | 2.28 | 0.09 |
| Dec | 1.82 | 1.88 | -0.06 |
37.23 | 37.56 | -0.33 |