| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.64 | -0.24 |
| Feb | 2.87 | 3.02 | -0.15 |
| Mar | 3.71 | 3.92 | -0.21 |
| Apr | 3.37 | 3.64 | -0.27 |
| May | 3.79 | 3.86 | -0.07 |
| Jun | 4.37 | 4.44 | -0.07 |
| Jul | 5.49 | 5.40 | 0.09 |
| Aug | 5.21 | 5.65 | -0.44 |
| Sep | 4.99 | 5.00 | -0.01 |
| Oct | 3.88 | 4.28 | -0.40 |
| Nov | 3.01 | 3.39 | -0.38 |
| Dec | 3.26 | 3.62 | -0.36 |
47.35 | 49.86 | -2.51 |