| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.69 | -0.13 |
| Feb | 2.85 | 2.92 | -0.07 |
| Mar | 4.19 | 4.24 | -0.05 |
| Apr | 3.65 | 3.75 | -0.10 |
| May | 3.96 | 3.88 | 0.08 |
| Jun | 4.29 | 4.31 | -0.02 |
| Jul | 4.63 | 4.64 | -0.01 |
| Aug | 4.29 | 4.36 | -0.07 |
| Sep | 3.92 | 4.01 | -0.09 |
| Oct | 4.11 | 4.22 | -0.11 |
| Nov | 3.33 | 3.37 | -0.04 |
| Dec | 4.23 | 4.41 | -0.18 |
47.01 | 47.80 | -0.79 |