| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.51 | -0.05 |
| Feb | 2.99 | 3.01 | -0.02 |
| Mar | 4.06 | 4.14 | -0.08 |
| Apr | 3.41 | 3.48 | -0.07 |
| May | 3.62 | 3.67 | -0.05 |
| Jun | 3.94 | 4.08 | -0.14 |
| Jul | 4.39 | 4.39 | 0.00 |
| Aug | 4.79 | 5.10 | -0.31 |
| Sep | 4.17 | 4.39 | -0.22 |
| Oct | 3.88 | 4.08 | -0.20 |
| Nov | 3.18 | 3.23 | -0.05 |
| Dec | 3.63 | 3.83 | -0.20 |
45.52 | 46.91 | -1.39 |