| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.35 | 3.46 | -0.11 |
| Feb | 3.28 | 3.45 | -0.17 |
| Mar | 4.30 | 4.50 | -0.20 |
| Apr | 4.16 | 4.36 | -0.20 |
| May | 3.83 | 3.94 | -0.11 |
| Jun | 4.13 | 4.28 | -0.15 |
| Jul | 3.67 | 3.73 | -0.06 |
| Aug | 3.50 | 3.55 | -0.05 |
| Sep | 3.80 | 3.94 | -0.14 |
| Oct | 4.81 | 4.83 | -0.02 |
| Nov | 3.89 | 3.94 | -0.05 |
| Dec | 4.40 | 4.62 | -0.22 |
47.12 | 48.60 | -1.48 |