| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.59 | -0.15 |
| Feb | 3.05 | 3.19 | -0.14 |
| Mar | 4.52 | 4.73 | -0.21 |
| Apr | 3.45 | 3.68 | -0.23 |
| May | 3.25 | 3.36 | -0.11 |
| Jun | 3.78 | 3.82 | -0.04 |
| Jul | 4.49 | 4.42 | 0.07 |
| Aug | 4.75 | 4.78 | -0.03 |
| Sep | 3.75 | 3.82 | -0.07 |
| Oct | 4.12 | 4.29 | -0.17 |
| Nov | 3.36 | 3.44 | -0.08 |
| Dec | 4.37 | 4.64 | -0.27 |
46.33 | 47.76 | -1.43 |