| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.20 | 4.45 | -0.25 |
| Feb | 3.92 | 4.03 | -0.11 |
| Mar | 4.58 | 4.65 | -0.07 |
| Apr | 3.77 | 4.11 | -0.34 |
| May | 4.03 | 3.98 | 0.05 |
| Jun | 4.26 | 4.22 | 0.04 |
| Jul | 4.21 | 4.43 | -0.22 |
| Aug | 4.69 | 4.80 | -0.11 |
| Sep | 3.83 | 3.91 | -0.08 |
| Oct | 3.34 | 3.62 | -0.28 |
| Nov | 3.64 | 3.97 | -0.33 |
| Dec | 4.47 | 4.94 | -0.47 |
48.94 | 51.11 | -2.17 |