| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.60 | -0.13 |
| Feb | 3.02 | 3.17 | -0.15 |
| Mar | 4.51 | 4.73 | -0.22 |
| Apr | 3.46 | 3.69 | -0.23 |
| May | 3.26 | 3.36 | -0.10 |
| Jun | 3.83 | 3.89 | -0.06 |
| Jul | 4.53 | 4.48 | 0.05 |
| Aug | 4.81 | 4.91 | -0.10 |
| Sep | 3.75 | 3.84 | -0.09 |
| Oct | 4.11 | 4.28 | -0.17 |
| Nov | 3.37 | 3.42 | -0.05 |
| Dec | 4.37 | 4.64 | -0.27 |
46.49 | 48.01 | -1.52 |