| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.49 | 0.52 | -0.03 |
| Feb | 0.52 | 0.54 | -0.02 |
| Mar | 1.19 | 1.26 | -0.07 |
| Apr | 1.68 | 1.76 | -0.08 |
| May | 2.63 | 2.78 | -0.15 |
| Jun | 3.32 | 3.29 | 0.03 |
| Jul | 3.13 | 3.06 | 0.07 |
| Aug | 2.79 | 2.81 | -0.02 |
| Sep | 1.41 | 1.41 | 0.00 |
| Oct | 1.71 | 1.85 | -0.14 |
| Nov | 0.60 | 0.65 | -0.05 |
| Dec | 0.75 | 0.89 | -0.14 |
20.22 | 20.82 | -0.60 |