| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.71 | 5.42 | -0.71 |
| Feb | 4.37 | 4.50 | -0.13 |
| Mar | 4.98 | 5.17 | -0.19 |
| Apr | 4.90 | 5.63 | -0.73 |
| May | 3.78 | 4.27 | -0.49 |
| Jun | 6.18 | 6.81 | -0.63 |
| Jul | 7.32 | 8.01 | -0.69 |
| Aug | 6.75 | 7.13 | -0.38 |
| Sep | 6.49 | 6.45 | 0.04 |
| Oct | 4.18 | 4.25 | -0.07 |
| Nov | 4.16 | 4.39 | -0.23 |
| Dec | 4.91 | 5.14 | -0.23 |
62.73 | 67.17 | -4.44 |