| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.46 | 2.33 | 0.13 |
| Feb | 1.95 | 2.06 | -0.11 |
| Mar | 1.91 | 2.09 | -0.18 |
| Apr | 1.64 | 1.91 | -0.27 |
| May | 1.44 | 1.61 | -0.17 |
| Jun | 0.80 | 0.82 | -0.02 |
| Jul | 0.36 | 0.45 | -0.09 |
| Aug | 0.31 | 0.36 | -0.05 |
| Sep | 0.46 | 0.51 | -0.05 |
| Oct | 1.27 | 1.42 | -0.15 |
| Nov | 2.39 | 2.57 | -0.18 |
| Dec | 3.30 | 3.47 | -0.17 |
18.29 | 19.60 | -1.31 |