| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.84 | -0.06 |
| Feb | 0.84 | 0.86 | -0.02 |
| Mar | 1.52 | 1.43 | 0.09 |
| Apr | 2.78 | 2.84 | -0.06 |
| May | 4.08 | 4.09 | -0.01 |
| Jun | 4.36 | 4.41 | -0.05 |
| Jul | 4.33 | 4.37 | -0.04 |
| Aug | 4.07 | 3.91 | 0.16 |
| Sep | 3.29 | 3.31 | -0.02 |
| Oct | 2.92 | 2.89 | 0.03 |
| Nov | 1.66 | 1.62 | 0.04 |
| Dec | 1.14 | 1.23 | -0.09 |
31.77 | 31.80 | -0.03 |