| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.42 | 0.44 | -0.02 |
| Feb | 0.54 | 0.60 | -0.06 |
| Mar | 1.14 | 1.20 | -0.06 |
| Apr | 1.72 | 1.82 | -0.10 |
| May | 2.86 | 3.08 | -0.22 |
| Jun | 2.98 | 2.94 | 0.04 |
| Jul | 3.12 | 3.07 | 0.05 |
| Aug | 2.82 | 3.03 | -0.21 |
| Sep | 1.58 | 1.69 | -0.11 |
| Oct | 1.49 | 1.57 | -0.08 |
| Nov | 0.64 | 0.69 | -0.05 |
| Dec | 0.54 | 0.71 | -0.17 |
19.85 | 20.84 | -0.99 |