| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.34 | 0.32 | 0.02 |
| Feb | 0.52 | 0.46 | 0.06 |
| Mar | 1.03 | 0.89 | 0.14 |
| Apr | 1.96 | 2.03 | -0.07 |
| May | 3.07 | 3.06 | 0.01 |
| Jun | 3.05 | 2.85 | 0.20 |
| Jul | 3.63 | 3.94 | -0.31 |
| Aug | 3.02 | 3.34 | -0.32 |
| Sep | 1.73 | 1.55 | 0.18 |
| Oct | 1.59 | 1.50 | 0.09 |
| Nov | 0.66 | 0.67 | -0.01 |
| Dec | 0.53 | 0.56 | -0.03 |
21.13 | 21.17 | -0.04 |