| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.82 | 3.27 | -0.45 |
| Feb | 2.18 | 2.47 | -0.29 |
| Mar | 2.92 | 3.24 | -0.32 |
| Apr | 3.61 | 3.89 | -0.28 |
| May | 3.81 | 3.77 | 0.04 |
| Jun | 4.04 | 3.80 | 0.24 |
| Jul | 3.99 | 3.83 | 0.16 |
| Aug | 3.55 | 3.80 | -0.25 |
| Sep | 4.01 | 3.86 | 0.15 |
| Oct | 3.68 | 3.97 | -0.29 |
| Nov | 3.39 | 3.52 | -0.13 |
| Dec | 3.01 | 3.45 | -0.44 |
41.01 | 42.87 | -1.86 |