| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.60 | 0.60 | 0.00 |
| Feb | 0.49 | 0.44 | 0.05 |
| Mar | 1.19 | 1.13 | 0.06 |
| Apr | 1.28 | 1.21 | 0.07 |
| May | 2.26 | 2.28 | -0.02 |
| Jun | 2.88 | 2.88 | 0.00 |
| Jul | 2.52 | 2.51 | 0.01 |
| Aug | 2.82 | 2.87 | -0.05 |
| Sep | 1.72 | 1.74 | -0.02 |
| Oct | 1.85 | 1.96 | -0.11 |
| Nov | 0.69 | 0.71 | -0.02 |
| Dec | 0.70 | 0.68 | 0.02 |
19.00 | 19.01 | -0.01 |