| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.92 | -0.17 |
| Feb | 0.78 | 0.88 | -0.10 |
| Mar | 1.59 | 1.71 | -0.12 |
| Apr | 2.87 | 3.12 | -0.25 |
| May | 4.16 | 4.26 | -0.10 |
| Jun | 4.56 | 4.69 | -0.13 |
| Jul | 4.18 | 4.44 | -0.26 |
| Aug | 4.46 | 4.29 | 0.17 |
| Sep | 3.29 | 3.32 | -0.03 |
| Oct | 2.81 | 2.90 | -0.09 |
| Nov | 1.58 | 1.70 | -0.12 |
| Dec | 1.06 | 1.30 | -0.24 |
32.09 | 33.53 | -1.44 |