| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.62 | 3.68 | -0.06 |
| Feb | 3.96 | 4.04 | -0.08 |
| Mar | 5.03 | 5.01 | 0.02 |
| Apr | 5.27 | 5.44 | -0.17 |
| May | 5.54 | 5.16 | 0.38 |
| Jun | 3.49 | 3.31 | 0.18 |
| Jul | 3.89 | 3.68 | 0.21 |
| Aug | 3.76 | 3.49 | 0.27 |
| Sep | 3.39 | 3.31 | 0.08 |
| Oct | 3.84 | 4.02 | -0.18 |
| Nov | 4.63 | 4.87 | -0.24 |
| Dec | 4.69 | 4.90 | -0.21 |
51.11 | 50.91 | 0.20 |