| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.39 | -0.01 |
| Feb | 0.50 | 0.55 | -0.05 |
| Mar | 1.00 | 1.00 | 0.00 |
| Apr | 2.12 | 2.14 | -0.02 |
| May | 2.94 | 3.06 | -0.12 |
| Jun | 3.24 | 3.13 | 0.11 |
| Jul | 3.43 | 3.35 | 0.08 |
| Aug | 3.01 | 2.97 | 0.04 |
| Sep | 1.57 | 1.56 | 0.01 |
| Oct | 1.50 | 1.52 | -0.02 |
| Nov | 0.74 | 0.68 | 0.06 |
| Dec | 0.54 | 0.55 | -0.01 |
20.97 | 20.90 | 0.07 |