| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.13 | 3.09 | 0.04 |
| Feb | 2.70 | 2.81 | -0.11 |
| Mar | 4.05 | 3.99 | 0.06 |
| Apr | 3.28 | 3.22 | 0.06 |
| May | 3.90 | 4.08 | -0.18 |
| Jun | 4.25 | 4.30 | -0.05 |
| Jul | 4.45 | 4.46 | -0.01 |
| Aug | 4.41 | 4.51 | -0.10 |
| Sep | 4.61 | 4.51 | 0.10 |
| Oct | 3.89 | 4.11 | -0.22 |
| Nov | 3.20 | 3.18 | 0.02 |
| Dec | 3.69 | 3.75 | -0.06 |
45.56 | 46.01 | -0.45 |