| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.82 | 0.97 | -0.15 |
| Feb | 0.82 | 0.92 | -0.10 |
| Mar | 1.64 | 1.71 | -0.07 |
| Apr | 2.92 | 3.11 | -0.19 |
| May | 4.20 | 4.28 | -0.08 |
| Jun | 4.82 | 4.99 | -0.17 |
| Jul | 4.20 | 4.22 | -0.02 |
| Aug | 4.58 | 4.51 | 0.07 |
| Sep | 3.36 | 3.35 | 0.01 |
| Oct | 2.75 | 2.98 | -0.23 |
| Nov | 1.64 | 1.74 | -0.10 |
| Dec | 1.17 | 1.31 | -0.14 |
32.92 | 34.09 | -1.17 |