| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.33 | 0.27 | 0.06 |
| Feb | 0.55 | 0.48 | 0.07 |
| Mar | 1.00 | 0.91 | 0.09 |
| Apr | 1.91 | 1.84 | 0.07 |
| May | 2.90 | 2.99 | -0.09 |
| Jun | 2.69 | 2.88 | -0.19 |
| Jul | 2.56 | 2.49 | 0.07 |
| Aug | 2.00 | 2.08 | -0.08 |
| Sep | 1.56 | 1.52 | 0.04 |
| Oct | 1.32 | 1.25 | 0.07 |
| Nov | 0.59 | 0.54 | 0.05 |
| Dec | 0.48 | 0.43 | 0.05 |
17.89 | 17.68 | 0.21 |