| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.74 | 0.03 |
| Feb | 0.99 | 0.96 | 0.03 |
| Mar | 1.98 | 1.96 | 0.02 |
| Apr | 2.77 | 2.73 | 0.04 |
| May | 2.60 | 2.67 | -0.07 |
| Jun | 1.84 | 1.88 | -0.04 |
| Jul | 2.37 | 2.31 | 0.06 |
| Aug | 2.31 | 2.35 | -0.04 |
| Sep | 1.66 | 1.62 | 0.04 |
| Oct | 1.31 | 1.40 | -0.09 |
| Nov | 0.97 | 0.96 | 0.01 |
| Dec | 0.80 | 0.82 | -0.02 |
20.37 | 20.40 | -0.03 |