| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.71 | -0.15 |
| Feb | 3.01 | 3.06 | -0.05 |
| Mar | 3.91 | 4.15 | -0.24 |
| Apr | 3.60 | 3.79 | -0.19 |
| May | 3.47 | 3.62 | -0.15 |
| Jun | 4.08 | 4.35 | -0.27 |
| Jul | 4.55 | 4.43 | 0.12 |
| Aug | 4.35 | 4.66 | -0.31 |
| Sep | 4.82 | 5.17 | -0.35 |
| Oct | 3.22 | 3.52 | -0.30 |
| Nov | 3.31 | 3.46 | -0.15 |
| Dec | 3.54 | 3.59 | -0.05 |
45.42 | 47.51 | -2.09 |