| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.55 | 0.56 | -0.01 |
| Feb | 0.58 | 0.62 | -0.04 |
| Mar | 1.34 | 1.36 | -0.02 |
| Apr | 1.85 | 1.89 | -0.04 |
| May | 2.90 | 2.88 | 0.02 |
| Jun | 3.41 | 3.39 | 0.02 |
| Jul | 3.15 | 3.10 | 0.05 |
| Aug | 2.92 | 3.11 | -0.19 |
| Sep | 1.42 | 1.41 | 0.01 |
| Oct | 1.89 | 1.92 | -0.03 |
| Nov | 0.70 | 0.73 | -0.03 |
| Dec | 0.83 | 0.89 | -0.06 |
21.54 | 21.86 | -0.32 |