| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.64 | -0.20 |
| Feb | 2.76 | 2.89 | -0.13 |
| Mar | 4.09 | 4.31 | -0.22 |
| Apr | 3.74 | 3.70 | 0.04 |
| May | 3.96 | 4.08 | -0.12 |
| Jun | 4.21 | 4.39 | -0.18 |
| Jul | 4.86 | 4.93 | -0.07 |
| Aug | 4.47 | 4.84 | -0.37 |
| Sep | 4.38 | 4.44 | -0.06 |
| Oct | 4.05 | 4.10 | -0.05 |
| Nov | 3.33 | 3.36 | -0.03 |
| Dec | 4.23 | 4.43 | -0.20 |
47.52 | 49.11 | -1.59 |