| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.56 | 0.52 | 0.04 |
| Feb | 0.55 | 0.53 | 0.02 |
| Mar | 1.26 | 1.32 | -0.06 |
| Apr | 1.81 | 1.89 | -0.08 |
| May | 2.72 | 2.67 | 0.05 |
| Jun | 3.52 | 3.41 | 0.11 |
| Jul | 3.13 | 2.91 | 0.22 |
| Aug | 2.74 | 2.98 | -0.24 |
| Sep | 1.36 | 1.47 | -0.11 |
| Oct | 1.83 | 2.10 | -0.27 |
| Nov | 0.65 | 0.66 | -0.01 |
| Dec | 0.79 | 0.87 | -0.08 |
20.92 | 21.33 | -0.41 |