| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.64 | 3.70 | -0.06 |
| Feb | 3.81 | 3.91 | -0.10 |
| Mar | 4.19 | 4.30 | -0.11 |
| Apr | 3.81 | 4.01 | -0.20 |
| May | 4.35 | 4.58 | -0.23 |
| Jun | 3.93 | 4.00 | -0.07 |
| Jul | 2.77 | 2.77 | 0.00 |
| Aug | 2.71 | 2.66 | 0.05 |
| Sep | 3.49 | 3.35 | 0.14 |
| Oct | 4.75 | 4.75 | 0.00 |
| Nov | 3.69 | 3.79 | -0.10 |
| Dec | 4.37 | 4.51 | -0.14 |
45.51 | 46.33 | -0.82 |