| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.36 | 0.38 | -0.02 |
| Feb | 0.55 | 0.57 | -0.02 |
| Mar | 0.73 | 0.80 | -0.07 |
| Apr | 1.68 | 1.82 | -0.14 |
| May | 2.93 | 3.06 | -0.13 |
| Jun | 3.30 | 3.37 | -0.07 |
| Jul | 2.60 | 2.61 | -0.01 |
| Aug | 2.04 | 2.22 | -0.18 |
| Sep | 1.60 | 1.66 | -0.06 |
| Oct | 1.72 | 1.69 | 0.03 |
| Nov | 0.49 | 0.52 | -0.03 |
| Dec | 0.40 | 0.45 | -0.05 |
18.40 | 19.15 | -0.75 |