| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.62 | 4.68 | -0.06 |
| Feb | 4.04 | 4.15 | -0.11 |
| Mar | 4.79 | 4.83 | -0.04 |
| Apr | 3.81 | 3.79 | 0.02 |
| May | 3.00 | 3.09 | -0.09 |
| Jun | 6.39 | 7.01 | -0.62 |
| Jul | 6.67 | 6.98 | -0.31 |
| Aug | 6.38 | 7.44 | -1.06 |
| Sep | 5.08 | 5.37 | -0.29 |
| Oct | 3.24 | 3.28 | -0.04 |
| Nov | 2.97 | 3.15 | -0.18 |
| Dec | 3.91 | 4.09 | -0.18 |
54.90 | 57.86 | -2.96 |