| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.18 | 3.37 | -0.19 |
| Feb | 2.97 | 3.34 | -0.37 |
| Mar | 3.60 | 3.86 | -0.26 |
| Apr | 4.12 | 4.26 | -0.14 |
| May | 3.68 | 3.61 | 0.07 |
| Jun | 4.58 | 4.75 | -0.17 |
| Jul | 4.10 | 4.18 | -0.08 |
| Aug | 3.78 | 4.01 | -0.23 |
| Sep | 3.78 | 3.83 | -0.05 |
| Oct | 5.25 | 5.42 | -0.17 |
| Nov | 4.22 | 4.34 | -0.12 |
| Dec | 4.24 | 4.42 | -0.18 |
47.50 | 49.39 | -1.89 |