| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.84 | 0.93 | -0.09 |
| Feb | 0.82 | 0.86 | -0.04 |
| Mar | 1.64 | 1.66 | -0.02 |
| Apr | 2.92 | 2.99 | -0.07 |
| May | 4.15 | 4.28 | -0.13 |
| Jun | 5.01 | 5.10 | -0.09 |
| Jul | 4.15 | 4.31 | -0.16 |
| Aug | 4.47 | 4.54 | -0.07 |
| Sep | 3.34 | 3.36 | -0.02 |
| Oct | 2.74 | 2.85 | -0.11 |
| Nov | 1.66 | 1.68 | -0.02 |
| Dec | 1.16 | 1.26 | -0.10 |
32.90 | 33.82 | -0.92 |