| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.61 | 0.64 | -0.03 |
| Feb | 0.56 | 0.62 | -0.06 |
| Mar | 1.12 | 1.10 | 0.02 |
| Apr | 2.10 | 2.09 | 0.01 |
| May | 3.26 | 3.19 | 0.07 |
| Jun | 4.23 | 4.31 | -0.08 |
| Jul | 4.33 | 4.25 | 0.08 |
| Aug | 3.43 | 3.49 | -0.06 |
| Sep | 2.84 | 2.73 | 0.11 |
| Oct | 2.51 | 2.49 | 0.02 |
| Nov | 0.99 | 0.97 | 0.02 |
| Dec | 0.70 | 0.82 | -0.12 |
26.68 | 26.70 | -0.02 |