| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.56 | 0.60 | -0.04 |
| Feb | 0.47 | 0.52 | -0.05 |
| Mar | 1.30 | 1.35 | -0.05 |
| Apr | 1.84 | 1.73 | 0.11 |
| May | 2.67 | 2.54 | 0.13 |
| Jun | 3.35 | 3.08 | 0.27 |
| Jul | 3.08 | 3.01 | 0.07 |
| Aug | 2.83 | 3.10 | -0.27 |
| Sep | 1.46 | 1.36 | 0.10 |
| Oct | 1.80 | 1.86 | -0.06 |
| Nov | 0.67 | 0.77 | -0.10 |
| Dec | 0.86 | 0.93 | -0.07 |
20.89 | 20.85 | 0.04 |