| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.51 | -0.05 |
| Feb | 3.05 | 3.22 | -0.17 |
| Mar | 4.41 | 4.32 | 0.09 |
| Apr | 3.43 | 3.31 | 0.12 |
| May | 3.26 | 3.31 | -0.05 |
| Jun | 3.69 | 3.58 | 0.11 |
| Jul | 4.46 | 4.15 | 0.31 |
| Aug | 4.36 | 4.47 | -0.11 |
| Sep | 3.75 | 3.59 | 0.16 |
| Oct | 3.85 | 4.08 | -0.23 |
| Nov | 3.10 | 3.23 | -0.13 |
| Dec | 4.28 | 4.40 | -0.12 |
45.10 | 45.17 | -0.07 |