| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.96 | 4.05 | -0.09 |
| Feb | 4.21 | 4.44 | -0.23 |
| Mar | 5.38 | 5.19 | 0.19 |
| Apr | 5.60 | 5.73 | -0.13 |
| May | 5.34 | 5.11 | 0.23 |
| Jun | 3.75 | 3.63 | 0.12 |
| Jul | 3.62 | 3.74 | -0.12 |
| Aug | 3.40 | 3.27 | 0.13 |
| Sep | 3.31 | 3.47 | -0.16 |
| Oct | 4.48 | 4.43 | 0.05 |
| Nov | 4.43 | 4.51 | -0.08 |
| Dec | 5.29 | 5.59 | -0.30 |
52.77 | 53.16 | -0.39 |