| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.78 | 3.66 | 0.12 |
| Feb | 3.35 | 3.26 | 0.09 |
| Mar | 3.95 | 4.00 | -0.05 |
| Apr | 3.49 | 3.49 | 0.00 |
| May | 4.19 | 4.36 | -0.17 |
| Jun | 4.98 | 4.91 | 0.07 |
| Jul | 5.54 | 5.32 | 0.22 |
| Aug | 6.21 | 5.78 | 0.43 |
| Sep | 6.56 | 6.31 | 0.25 |
| Oct | 3.73 | 3.97 | -0.24 |
| Nov | 3.27 | 3.30 | -0.03 |
| Dec | 3.59 | 3.45 | 0.14 |
52.64 | 51.81 | 0.83 |