| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.06 | 3.17 | -0.11 |
| Feb | 3.02 | 3.13 | -0.11 |
| Mar | 4.03 | 4.05 | -0.02 |
| Apr | 3.94 | 4.05 | -0.11 |
| May | 3.69 | 3.66 | 0.03 |
| Jun | 4.07 | 4.11 | -0.04 |
| Jul | 3.71 | 3.54 | 0.17 |
| Aug | 3.53 | 3.62 | -0.09 |
| Sep | 3.89 | 3.78 | 0.11 |
| Oct | 4.62 | 4.69 | -0.07 |
| Nov | 3.80 | 3.72 | 0.08 |
| Dec | 4.12 | 4.23 | -0.11 |
45.48 | 45.75 | -0.27 |