| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.85 | 0.90 | -0.05 |
| Feb | 1.11 | 1.15 | -0.04 |
| Mar | 2.17 | 2.11 | 0.06 |
| Apr | 2.79 | 2.81 | -0.02 |
| May | 4.23 | 4.10 | 0.13 |
| Jun | 4.39 | 4.40 | -0.01 |
| Jul | 3.03 | 3.52 | -0.49 |
| Aug | 3.31 | 3.47 | -0.16 |
| Sep | 2.28 | 2.23 | 0.05 |
| Oct | 2.63 | 2.54 | 0.09 |
| Nov | 1.42 | 1.40 | 0.02 |
| Dec | 1.16 | 1.29 | -0.13 |
29.37 | 29.92 | -0.55 |