| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.93 | 4.22 | -0.29 |
| Feb | 3.54 | 3.67 | -0.13 |
| Mar | 4.96 | 5.09 | -0.13 |
| Apr | 4.22 | 4.36 | -0.14 |
| May | 3.44 | 3.50 | -0.06 |
| Jun | 3.46 | 3.59 | -0.13 |
| Jul | 2.78 | 2.87 | -0.09 |
| Aug | 3.50 | 3.64 | -0.14 |
| Sep | 4.08 | 4.13 | -0.05 |
| Oct | 4.85 | 4.68 | 0.17 |
| Nov | 4.27 | 4.21 | 0.06 |
| Dec | 4.78 | 5.13 | -0.35 |
47.81 | 49.09 | -1.28 |