| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.03 | 3.98 | 0.05 |
| Feb | 3.72 | 3.84 | -0.12 |
| Mar | 4.37 | 4.45 | -0.08 |
| Apr | 2.96 | 3.11 | -0.15 |
| May | 3.22 | 3.07 | 0.15 |
| Jun | 4.59 | 4.63 | -0.04 |
| Jul | 4.36 | 4.38 | -0.02 |
| Aug | 4.63 | 4.87 | -0.24 |
| Sep | 3.64 | 3.82 | -0.18 |
| Oct | 2.77 | 2.80 | -0.03 |
| Nov | 3.03 | 3.16 | -0.13 |
| Dec | 4.01 | 4.05 | -0.04 |
45.33 | 46.16 | -0.83 |