| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.36 | 4.41 | -0.05 |
| Feb | 4.18 | 4.29 | -0.11 |
| Mar | 4.56 | 4.46 | 0.10 |
| Apr | 3.55 | 3.86 | -0.31 |
| May | 2.80 | 2.76 | 0.04 |
| Jun | 4.34 | 4.44 | -0.10 |
| Jul | 5.08 | 4.92 | 0.16 |
| Aug | 4.31 | 4.56 | -0.25 |
| Sep | 3.62 | 3.81 | -0.19 |
| Oct | 2.76 | 2.82 | -0.06 |
| Nov | 3.29 | 3.36 | -0.07 |
| Dec | 4.67 | 4.61 | 0.06 |
47.52 | 48.30 | -0.78 |