| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.44 | -0.03 |
| Feb | 3.03 | 3.06 | -0.03 |
| Mar | 4.10 | 4.20 | -0.10 |
| Apr | 3.37 | 3.46 | -0.09 |
| May | 3.51 | 3.64 | -0.13 |
| Jun | 3.68 | 3.85 | -0.17 |
| Jul | 4.45 | 4.65 | -0.20 |
| Aug | 4.64 | 4.60 | 0.04 |
| Sep | 4.18 | 4.39 | -0.21 |
| Oct | 4.19 | 4.46 | -0.27 |
| Nov | 3.35 | 3.41 | -0.06 |
| Dec | 3.88 | 4.10 | -0.22 |
45.79 | 47.26 | -1.47 |