| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.83 | 3.89 | -0.06 |
| Feb | 4.02 | 4.04 | -0.02 |
| Mar | 4.52 | 4.56 | -0.04 |
| Apr | 4.14 | 4.24 | -0.10 |
| May | 4.74 | 4.79 | -0.05 |
| Jun | 4.06 | 4.12 | -0.06 |
| Jul | 3.03 | 3.03 | 0.00 |
| Aug | 2.72 | 2.75 | -0.03 |
| Sep | 3.55 | 3.56 | -0.01 |
| Oct | 4.54 | 4.55 | -0.01 |
| Nov | 3.85 | 3.80 | 0.05 |
| Dec | 4.45 | 4.63 | -0.18 |
47.45 | 47.96 | -0.51 |