| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.23 | 3.44 | -0.21 |
| Feb | 3.12 | 3.35 | -0.23 |
| Mar | 4.10 | 4.51 | -0.41 |
| Apr | 3.96 | 3.87 | 0.09 |
| May | 3.62 | 3.69 | -0.07 |
| Jun | 4.10 | 4.27 | -0.17 |
| Jul | 3.55 | 3.56 | -0.01 |
| Aug | 3.42 | 3.39 | 0.03 |
| Sep | 3.80 | 3.68 | 0.12 |
| Oct | 4.63 | 4.70 | -0.07 |
| Nov | 3.66 | 3.69 | -0.03 |
| Dec | 4.20 | 4.45 | -0.25 |
45.39 | 46.60 | -1.21 |