| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.48 | -0.02 |
| Feb | 3.06 | 3.00 | 0.06 |
| Mar | 3.59 | 3.66 | -0.07 |
| Apr | 3.31 | 3.45 | -0.14 |
| May | 3.40 | 3.43 | -0.03 |
| Jun | 4.75 | 4.78 | -0.03 |
| Jul | 5.28 | 5.24 | 0.04 |
| Aug | 4.78 | 5.06 | -0.28 |
| Sep | 5.12 | 5.42 | -0.30 |
| Oct | 3.29 | 3.32 | -0.03 |
| Nov | 3.37 | 3.35 | 0.02 |
| Dec | 3.41 | 3.43 | -0.02 |
46.82 | 47.62 | -0.80 |