| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.88 | 3.96 | -0.08 |
| Feb | 4.42 | 4.49 | -0.07 |
| Mar | 5.06 | 5.03 | 0.03 |
| Apr | 5.26 | 5.15 | 0.11 |
| May | 5.25 | 5.61 | -0.36 |
| Jun | 4.60 | 4.43 | 0.17 |
| Jul | 4.58 | 4.59 | -0.01 |
| Aug | 3.37 | 3.34 | 0.03 |
| Sep | 3.53 | 3.47 | 0.06 |
| Oct | 3.64 | 3.88 | -0.24 |
| Nov | 4.15 | 4.13 | 0.02 |
| Dec | 4.77 | 4.82 | -0.05 |
52.51 | 52.90 | -0.39 |