| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.70 | 0.02 |
| Feb | 1.05 | 0.96 | 0.09 |
| Mar | 1.85 | 1.91 | -0.06 |
| Apr | 2.28 | 2.40 | -0.12 |
| May | 3.86 | 4.16 | -0.30 |
| Jun | 3.95 | 3.96 | -0.01 |
| Jul | 3.42 | 3.49 | -0.07 |
| Aug | 3.50 | 3.37 | 0.13 |
| Sep | 2.09 | 2.14 | -0.05 |
| Oct | 2.27 | 2.30 | -0.03 |
| Nov | 1.16 | 1.12 | 0.04 |
| Dec | 0.97 | 1.03 | -0.06 |
27.12 | 27.54 | -0.42 |