| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.92 | 1.17 | -0.25 |
| Feb | 0.78 | 1.02 | -0.24 |
| Mar | 0.77 | 0.95 | -0.18 |
| Apr | 0.69 | 0.95 | -0.26 |
| May | 0.98 | 1.04 | -0.06 |
| Jun | 1.57 | 1.94 | -0.37 |
| Jul | 3.68 | 3.74 | -0.06 |
| Aug | 3.53 | 4.02 | -0.49 |
| Sep | 2.36 | 2.74 | -0.38 |
| Oct | 1.67 | 1.56 | 0.11 |
| Nov | 0.74 | 1.04 | -0.30 |
| Dec | 1.40 | 1.36 | 0.04 |
19.09 | 21.53 | -2.44 |