| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.51 | -0.07 |
| Feb | 2.73 | 2.86 | -0.13 |
| Mar | 3.73 | 3.67 | 0.06 |
| Apr | 4.88 | 5.11 | -0.23 |
| May | 5.10 | 5.21 | -0.11 |
| Jun | 4.92 | 5.24 | -0.32 |
| Jul | 4.47 | 4.56 | -0.09 |
| Aug | 3.39 | 3.44 | -0.05 |
| Sep | 3.40 | 3.67 | -0.27 |
| Oct | 3.59 | 3.55 | 0.04 |
| Nov | 3.79 | 3.81 | -0.02 |
| Dec | 3.46 | 3.55 | -0.09 |
46.90 | 48.18 | -1.28 |