| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.58 | 4.78 | -0.20 |
| Feb | 4.32 | 4.38 | -0.06 |
| Mar | 4.63 | 4.74 | -0.11 |
| Apr | 3.89 | 4.11 | -0.22 |
| May | 3.66 | 3.82 | -0.16 |
| Jun | 4.27 | 4.29 | -0.02 |
| Jul | 4.24 | 4.11 | 0.13 |
| Aug | 4.67 | 5.02 | -0.35 |
| Sep | 3.85 | 4.03 | -0.18 |
| Oct | 3.55 | 3.85 | -0.30 |
| Nov | 3.75 | 3.91 | -0.16 |
| Dec | 4.77 | 4.99 | -0.22 |
50.18 | 52.03 | -1.85 |