| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.58 | 5.40 | -0.82 |
| Feb | 4.04 | 4.60 | -0.56 |
| Mar | 3.15 | 3.75 | -0.60 |
| Apr | 1.67 | 2.09 | -0.42 |
| May | 1.18 | 1.53 | -0.35 |
| Jun | 0.53 | 0.62 | -0.09 |
| Jul | 0.05 | 0.07 | -0.02 |
| Aug | 0.07 | 0.08 | -0.01 |
| Sep | 0.24 | 0.30 | -0.06 |
| Oct | 1.12 | 1.28 | -0.16 |
| Nov | 2.58 | 2.82 | -0.24 |
| Dec | 4.32 | 5.37 | -1.05 |
23.53 | 27.91 | -4.38 |