| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.28 | 0.34 | -0.06 |
| Feb | 0.46 | 0.47 | -0.01 |
| Mar | 0.94 | 0.91 | 0.03 |
| Apr | 2.07 | 2.07 | 0.00 |
| May | 3.95 | 3.95 | 0.00 |
| Jun | 3.16 | 3.04 | 0.12 |
| Jul | 2.65 | 2.50 | 0.15 |
| Aug | 1.82 | 1.99 | -0.17 |
| Sep | 1.41 | 1.46 | -0.05 |
| Oct | 1.47 | 1.54 | -0.07 |
| Nov | 0.47 | 0.48 | -0.01 |
| Dec | 0.33 | 0.35 | -0.02 |
19.01 | 19.10 | -0.09 |