| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.69 | 3.91 | -0.22 |
| Feb | 4.02 | 4.05 | -0.03 |
| Mar | 4.36 | 4.40 | -0.04 |
| Apr | 4.04 | 4.20 | -0.16 |
| May | 4.68 | 4.68 | 0.00 |
| Jun | 4.04 | 4.17 | -0.13 |
| Jul | 2.94 | 2.99 | -0.05 |
| Aug | 2.75 | 2.69 | 0.06 |
| Sep | 3.73 | 3.46 | 0.27 |
| Oct | 4.76 | 4.55 | 0.21 |
| Nov | 4.02 | 3.79 | 0.23 |
| Dec | 4.39 | 4.55 | -0.16 |
47.42 | 47.44 | -0.02 |