| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.46 | 0.22 |
| Feb | 0.83 | 0.61 | 0.22 |
| Mar | 1.45 | 1.46 | -0.01 |
| Apr | 2.52 | 1.97 | 0.55 |
| May | 3.06 | 3.03 | 0.03 |
| Jun | 1.95 | 2.06 | -0.11 |
| Jul | 2.19 | 2.35 | -0.16 |
| Aug | 1.84 | 1.75 | 0.09 |
| Sep | 1.61 | 1.43 | 0.18 |
| Oct | 1.31 | 1.18 | 0.13 |
| Nov | 1.02 | 0.69 | 0.33 |
| Dec | 0.65 | 0.48 | 0.17 |
19.11 | 17.47 | 1.64 |