| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.89 | -0.11 |
| Feb | 0.83 | 0.89 | -0.06 |
| Mar | 1.58 | 1.59 | -0.01 |
| Apr | 2.82 | 3.05 | -0.23 |
| May | 4.15 | 4.21 | -0.06 |
| Jun | 4.72 | 4.92 | -0.20 |
| Jul | 4.11 | 4.23 | -0.12 |
| Aug | 4.40 | 4.40 | 0.00 |
| Sep | 3.25 | 3.35 | -0.10 |
| Oct | 2.89 | 2.90 | -0.01 |
| Nov | 1.66 | 1.70 | -0.04 |
| Dec | 1.12 | 1.25 | -0.13 |
32.31 | 33.38 | -1.07 |