| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.81 | -0.12 |
| Feb | 0.79 | 0.90 | -0.11 |
| Mar | 1.45 | 1.56 | -0.11 |
| Apr | 2.77 | 2.92 | -0.15 |
| May | 4.13 | 4.27 | -0.14 |
| Jun | 4.41 | 4.44 | -0.03 |
| Jul | 4.15 | 4.41 | -0.26 |
| Aug | 3.98 | 4.13 | -0.15 |
| Sep | 3.15 | 3.32 | -0.17 |
| Oct | 2.80 | 2.78 | 0.02 |
| Nov | 1.53 | 1.65 | -0.12 |
| Dec | 1.02 | 1.17 | -0.15 |
30.87 | 32.36 | -1.49 |