| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.82 | 0.95 | -0.13 |
| Feb | 0.66 | 0.83 | -0.17 |
| Mar | 1.33 | 1.44 | -0.11 |
| Apr | 1.24 | 1.40 | -0.16 |
| May | 2.66 | 2.93 | -0.27 |
| Jun | 1.90 | 2.19 | -0.29 |
| Jul | 1.91 | 1.92 | -0.01 |
| Aug | 1.64 | 1.54 | 0.10 |
| Sep | 3.33 | 3.35 | -0.02 |
| Oct | 1.76 | 1.97 | -0.21 |
| Nov | 1.04 | 1.14 | -0.10 |
| Dec | 0.82 | 0.92 | -0.10 |
19.11 | 20.58 | -1.47 |