| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.57 | -0.10 |
| Feb | 3.03 | 3.07 | -0.04 |
| Mar | 4.17 | 4.27 | -0.10 |
| Apr | 3.36 | 3.55 | -0.19 |
| May | 3.52 | 3.80 | -0.28 |
| Jun | 3.64 | 3.66 | -0.02 |
| Jul | 4.49 | 4.45 | 0.04 |
| Aug | 4.62 | 4.92 | -0.30 |
| Sep | 4.15 | 4.44 | -0.29 |
| Oct | 4.17 | 4.48 | -0.31 |
| Nov | 3.24 | 3.48 | -0.24 |
| Dec | 3.82 | 4.24 | -0.42 |
45.68 | 47.93 | -2.25 |