| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.40 | 0.41 | -0.01 |
| Feb | 0.54 | 0.46 | 0.08 |
| Mar | 1.01 | 1.10 | -0.09 |
| Apr | 1.90 | 1.98 | -0.08 |
| May | 2.45 | 2.28 | 0.17 |
| Jun | 2.13 | 1.97 | 0.16 |
| Jul | 3.25 | 2.97 | 0.28 |
| Aug | 2.86 | 3.17 | -0.31 |
| Sep | 1.22 | 1.38 | -0.16 |
| Oct | 1.05 | 1.07 | -0.02 |
| Nov | 0.62 | 0.59 | 0.03 |
| Dec | 0.44 | 0.48 | -0.04 |
17.87 | 17.86 | 0.01 |