| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.91 | 4.10 | -0.19 |
| Feb | 3.46 | 3.51 | -0.05 |
| Mar | 4.81 | 5.21 | -0.40 |
| Apr | 4.38 | 4.61 | -0.23 |
| May | 3.46 | 3.44 | 0.02 |
| Jun | 3.84 | 3.91 | -0.07 |
| Jul | 3.26 | 3.25 | 0.01 |
| Aug | 3.79 | 3.81 | -0.02 |
| Sep | 4.02 | 4.00 | 0.02 |
| Oct | 4.58 | 4.64 | -0.06 |
| Nov | 4.11 | 4.22 | -0.11 |
| Dec | 4.75 | 4.96 | -0.21 |
48.37 | 49.66 | -1.29 |