| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.78 | 2.81 | -0.03 |
| Feb | 2.27 | 2.18 | 0.09 |
| Mar | 2.98 | 2.95 | 0.03 |
| Apr | 3.69 | 3.67 | 0.02 |
| May | 4.04 | 4.07 | -0.03 |
| Jun | 4.53 | 4.39 | 0.14 |
| Jul | 3.93 | 3.84 | 0.09 |
| Aug | 3.52 | 3.49 | 0.03 |
| Sep | 3.38 | 3.35 | 0.03 |
| Oct | 3.16 | 2.99 | 0.17 |
| Nov | 2.78 | 2.73 | 0.05 |
| Dec | 2.75 | 2.81 | -0.06 |
39.81 | 39.28 | 0.53 |