| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.96 | 4.18 | -0.22 |
| Feb | 3.52 | 3.61 | -0.09 |
| Mar | 4.94 | 5.04 | -0.10 |
| Apr | 4.52 | 4.61 | -0.09 |
| May | 3.51 | 3.52 | -0.01 |
| Jun | 4.12 | 4.07 | 0.05 |
| Jul | 3.34 | 3.42 | -0.08 |
| Aug | 3.72 | 3.76 | -0.04 |
| Sep | 3.97 | 4.03 | -0.06 |
| Oct | 4.80 | 4.86 | -0.06 |
| Nov | 4.20 | 4.31 | -0.11 |
| Dec | 4.81 | 5.04 | -0.23 |
49.41 | 50.45 | -1.04 |