| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.81 | 1.90 | -0.09 |
| Feb | 1.68 | 1.82 | -0.14 |
| Mar | 2.22 | 2.30 | -0.08 |
| Apr | 3.68 | 3.77 | -0.09 |
| May | 4.66 | 4.51 | 0.15 |
| Jun | 4.43 | 4.40 | 0.03 |
| Jul | 3.92 | 3.93 | -0.01 |
| Aug | 3.96 | 3.72 | 0.24 |
| Sep | 3.28 | 3.32 | -0.04 |
| Oct | 3.21 | 3.31 | -0.10 |
| Nov | 2.43 | 2.47 | -0.04 |
| Dec | 2.01 | 2.06 | -0.05 |
37.29 | 37.51 | -0.22 |