| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.59 | 2.57 | 0.02 |
| Feb | 2.41 | 2.35 | 0.06 |
| Mar | 3.98 | 3.95 | 0.03 |
| Apr | 4.69 | 4.98 | -0.29 |
| May | 5.82 | 5.78 | 0.04 |
| Jun | 4.19 | 4.25 | -0.06 |
| Jul | 3.96 | 3.82 | 0.14 |
| Aug | 3.57 | 3.40 | 0.17 |
| Sep | 4.06 | 4.25 | -0.19 |
| Oct | 4.16 | 4.19 | -0.03 |
| Nov | 3.95 | 3.89 | 0.06 |
| Dec | 3.11 | 3.02 | 0.09 |
46.49 | 46.45 | 0.04 |