| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.71 | 5.08 | -0.37 |
| Feb | 4.29 | 4.66 | -0.37 |
| Mar | 4.73 | 4.92 | -0.19 |
| Apr | 4.65 | 4.77 | -0.12 |
| May | 4.24 | 4.50 | -0.26 |
| Jun | 4.50 | 4.56 | -0.06 |
| Jul | 4.85 | 4.41 | 0.44 |
| Aug | 4.07 | 4.42 | -0.35 |
| Sep | 3.97 | 4.33 | -0.36 |
| Oct | 3.60 | 3.30 | 0.30 |
| Nov | 3.85 | 3.75 | 0.10 |
| Dec | 5.14 | 5.34 | -0.20 |
52.60 | 54.04 | -1.44 |