| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.45 | -0.02 |
| Feb | 2.89 | 3.06 | -0.17 |
| Mar | 3.92 | 4.16 | -0.24 |
| Apr | 4.04 | 4.10 | -0.06 |
| May | 3.70 | 3.63 | 0.07 |
| Jun | 4.57 | 4.97 | -0.40 |
| Jul | 3.98 | 4.03 | -0.05 |
| Aug | 4.55 | 4.51 | 0.04 |
| Sep | 4.25 | 4.28 | -0.03 |
| Oct | 4.75 | 4.83 | -0.08 |
| Nov | 3.71 | 3.79 | -0.08 |
| Dec | 4.27 | 4.43 | -0.16 |
48.06 | 49.24 | -1.18 |