| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.40 | 0.45 | -0.05 |
| Feb | 0.46 | 0.44 | 0.02 |
| Mar | 0.75 | 0.80 | -0.05 |
| Apr | 1.25 | 1.21 | 0.04 |
| May | 3.17 | 3.21 | -0.04 |
| Jun | 3.45 | 3.55 | -0.10 |
| Jul | 3.47 | 3.59 | -0.12 |
| Aug | 2.40 | 2.33 | 0.07 |
| Sep | 2.11 | 2.27 | -0.16 |
| Oct | 1.72 | 1.76 | -0.04 |
| Nov | 0.59 | 0.61 | -0.02 |
| Dec | 0.53 | 0.57 | -0.04 |
20.30 | 20.79 | -0.49 |