| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.59 | -0.12 |
| Feb | 2.73 | 2.89 | -0.16 |
| Mar | 3.98 | 3.96 | 0.02 |
| Apr | 3.82 | 3.83 | -0.01 |
| May | 3.80 | 3.86 | -0.06 |
| Jun | 4.43 | 4.67 | -0.24 |
| Jul | 4.40 | 4.52 | -0.12 |
| Aug | 4.36 | 4.60 | -0.24 |
| Sep | 4.33 | 4.50 | -0.17 |
| Oct | 4.53 | 4.65 | -0.12 |
| Nov | 3.77 | 3.82 | -0.05 |
| Dec | 4.11 | 4.23 | -0.12 |
47.73 | 49.12 | -1.39 |