| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.05 | 2.19 | -0.14 |
| Feb | 1.81 | 2.00 | -0.19 |
| Mar | 2.34 | 2.36 | -0.02 |
| Apr | 3.79 | 3.84 | -0.05 |
| May | 4.38 | 4.46 | -0.08 |
| Jun | 4.24 | 4.31 | -0.07 |
| Jul | 3.70 | 3.91 | -0.21 |
| Aug | 4.09 | 4.02 | 0.07 |
| Sep | 3.26 | 3.26 | 0.00 |
| Oct | 3.49 | 3.47 | 0.02 |
| Nov | 2.57 | 2.63 | -0.06 |
| Dec | 2.09 | 2.28 | -0.19 |
37.81 | 38.73 | -0.92 |