| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.96 | 3.81 | 0.15 |
| Feb | 3.17 | 3.27 | -0.10 |
| Mar | 4.17 | 4.13 | 0.04 |
| Apr | 4.05 | 4.06 | -0.01 |
| May | 4.49 | 4.67 | -0.18 |
| Jun | 4.78 | 4.62 | 0.16 |
| Jul | 4.65 | 4.83 | -0.18 |
| Aug | 3.81 | 3.80 | 0.01 |
| Sep | 3.81 | 3.68 | 0.13 |
| Oct | 3.35 | 3.20 | 0.15 |
| Nov | 3.17 | 3.15 | 0.02 |
| Dec | 3.88 | 3.79 | 0.09 |
47.29 | 47.01 | 0.28 |