| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.06 | 4.43 | -0.37 |
| Feb | 3.56 | 3.57 | -0.01 |
| Mar | 4.06 | 4.68 | -0.62 |
| Apr | 4.53 | 5.13 | -0.60 |
| May | 4.94 | 5.19 | -0.25 |
| Jun | 4.82 | 5.27 | -0.45 |
| Jul | 5.24 | 5.20 | 0.04 |
| Aug | 4.44 | 4.87 | -0.43 |
| Sep | 3.90 | 4.89 | -0.99 |
| Oct | 3.45 | 3.85 | -0.40 |
| Nov | 3.26 | 3.90 | -0.64 |
| Dec | 3.97 | 4.21 | -0.24 |
50.23 | 55.19 | -4.96 |