| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.23 | 4.41 | -0.18 |
| Feb | 3.56 | 3.84 | -0.28 |
| Mar | 4.40 | 4.59 | -0.19 |
| Apr | 4.44 | 4.45 | -0.01 |
| May | 4.22 | 4.24 | -0.02 |
| Jun | 4.53 | 4.51 | 0.02 |
| Jul | 4.68 | 4.66 | 0.02 |
| Aug | 4.57 | 4.42 | 0.15 |
| Sep | 4.23 | 4.39 | -0.16 |
| Oct | 3.67 | 3.88 | -0.21 |
| Nov | 3.81 | 4.02 | -0.21 |
| Dec | 4.55 | 4.82 | -0.27 |
50.89 | 52.23 | -1.34 |