| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.62 | 3.90 | -0.28 |
| Feb | 3.20 | 3.46 | -0.26 |
| Mar | 4.28 | 4.56 | -0.28 |
| Apr | 4.41 | 4.70 | -0.29 |
| May | 3.95 | 4.08 | -0.13 |
| Jun | 4.44 | 4.36 | 0.08 |
| Jul | 4.03 | 4.11 | -0.08 |
| Aug | 3.97 | 4.25 | -0.28 |
| Sep | 4.57 | 4.53 | 0.04 |
| Oct | 4.81 | 5.10 | -0.29 |
| Nov | 3.99 | 4.06 | -0.07 |
| Dec | 4.37 | 4.68 | -0.31 |
49.64 | 51.79 | -2.15 |