| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.57 | 0.55 | 0.02 |
| Feb | 0.79 | 0.77 | 0.02 |
| Mar | 1.54 | 1.45 | 0.09 |
| Apr | 2.85 | 2.84 | 0.01 |
| May | 4.19 | 4.03 | 0.16 |
| Jun | 4.09 | 4.24 | -0.15 |
| Jul | 3.04 | 3.15 | -0.11 |
| Aug | 3.75 | 4.09 | -0.34 |
| Sep | 2.44 | 2.38 | 0.06 |
| Oct | 2.29 | 2.36 | -0.07 |
| Nov | 1.14 | 1.13 | 0.01 |
| Dec | 0.85 | 0.82 | 0.03 |
27.54 | 27.81 | -0.27 |