| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.70 | -0.11 |
| Feb | 3.36 | 3.39 | -0.03 |
| Mar | 4.39 | 4.54 | -0.15 |
| Apr | 4.09 | 4.24 | -0.15 |
| May | 3.57 | 3.56 | 0.01 |
| Jun | 4.11 | 4.03 | 0.08 |
| Jul | 3.55 | 3.62 | -0.07 |
| Aug | 3.58 | 3.65 | -0.07 |
| Sep | 3.83 | 3.73 | 0.10 |
| Oct | 4.62 | 4.72 | -0.10 |
| Nov | 3.84 | 3.90 | -0.06 |
| Dec | 4.60 | 4.75 | -0.15 |
47.13 | 47.83 | -0.70 |