| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.13 | 3.05 | 0.08 |
| Feb | 3.37 | 3.30 | 0.07 |
| Mar | 4.36 | 4.22 | 0.14 |
| Apr | 4.87 | 4.20 | 0.67 |
| May | 5.43 | 5.24 | 0.19 |
| Jun | 4.05 | 3.81 | 0.24 |
| Jul | 3.05 | 3.02 | 0.03 |
| Aug | 2.99 | 2.78 | 0.21 |
| Sep | 3.75 | 3.81 | -0.06 |
| Oct | 4.62 | 4.58 | 0.04 |
| Nov | 3.98 | 3.99 | -0.01 |
| Dec | 4.22 | 4.30 | -0.08 |
47.82 | 46.30 | 1.52 |