| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.63 | 3.44 | 0.19 |
| Feb | 3.83 | 3.94 | -0.11 |
| Mar | 5.09 | 5.18 | -0.09 |
| Apr | 5.33 | 5.38 | -0.05 |
| May | 5.50 | 5.52 | -0.02 |
| Jun | 3.43 | 3.50 | -0.07 |
| Jul | 3.70 | 3.57 | 0.13 |
| Aug | 3.64 | 3.70 | -0.06 |
| Sep | 3.51 | 3.64 | -0.13 |
| Oct | 4.06 | 4.08 | -0.02 |
| Nov | 4.92 | 4.65 | 0.27 |
| Dec | 4.65 | 4.72 | -0.07 |
51.29 | 51.32 | -0.03 |