| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.59 | -0.08 |
| Feb | 3.40 | 3.59 | -0.19 |
| Mar | 4.42 | 4.57 | -0.15 |
| Apr | 4.21 | 4.41 | -0.20 |
| May | 3.84 | 3.98 | -0.14 |
| Jun | 4.15 | 4.38 | -0.23 |
| Jul | 3.63 | 3.61 | 0.02 |
| Aug | 3.44 | 3.50 | -0.06 |
| Sep | 3.78 | 3.83 | -0.05 |
| Oct | 4.83 | 4.91 | -0.08 |
| Nov | 3.92 | 3.96 | -0.04 |
| Dec | 4.51 | 4.69 | -0.18 |
47.64 | 49.02 | -1.38 |