| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.20 | 4.37 | -0.17 |
| Feb | 4.97 | 5.12 | -0.15 |
| Mar | 3.46 | 3.47 | -0.01 |
| Apr | 1.79 | 1.62 | 0.17 |
| May | 0.88 | 0.75 | 0.13 |
| Jun | 0.11 | 0.10 | 0.01 |
| Jul | 0.23 | 0.35 | -0.12 |
| Aug | 0.41 | 0.31 | 0.10 |
| Sep | 0.40 | 0.45 | -0.05 |
| Oct | 0.87 | 0.98 | -0.11 |
| Nov | 1.82 | 1.83 | -0.01 |
| Dec | 3.50 | 3.40 | 0.10 |
22.64 | 22.75 | -0.11 |