| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.63 | -0.08 |
| Feb | 2.93 | 2.88 | 0.05 |
| Mar | 4.14 | 4.02 | 0.12 |
| Apr | 3.66 | 3.56 | 0.10 |
| May | 3.79 | 3.63 | 0.16 |
| Jun | 4.43 | 4.45 | -0.02 |
| Jul | 4.89 | 4.81 | 0.08 |
| Aug | 4.87 | 4.70 | 0.17 |
| Sep | 5.11 | 5.26 | -0.15 |
| Oct | 3.54 | 3.56 | -0.02 |
| Nov | 3.43 | 3.37 | 0.06 |
| Dec | 3.53 | 3.46 | 0.07 |
47.87 | 47.33 | 0.54 |