| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.87 | 4.86 | 0.01 |
| Feb | 4.78 | 4.84 | -0.06 |
| Mar | 5.31 | 5.33 | -0.02 |
| Apr | 4.55 | 4.54 | 0.01 |
| May | 4.03 | 3.91 | 0.12 |
| Jun | 3.92 | 4.03 | -0.11 |
| Jul | 4.14 | 4.15 | -0.01 |
| Aug | 3.82 | 3.99 | -0.17 |
| Sep | 3.81 | 3.64 | 0.17 |
| Oct | 3.54 | 3.72 | -0.18 |
| Nov | 4.23 | 4.27 | -0.04 |
| Dec | 5.08 | 5.03 | 0.05 |
52.08 | 52.31 | -0.23 |