| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.57 | 0.56 | 0.01 |
| Feb | 0.82 | 0.84 | -0.02 |
| Mar | 1.47 | 1.47 | 0.00 |
| Apr | 2.97 | 3.04 | -0.07 |
| May | 4.03 | 4.14 | -0.11 |
| Jun | 4.00 | 4.07 | -0.07 |
| Jul | 3.27 | 3.27 | 0.00 |
| Aug | 3.21 | 3.33 | -0.12 |
| Sep | 2.79 | 2.71 | 0.08 |
| Oct | 2.49 | 2.44 | 0.05 |
| Nov | 1.09 | 1.06 | 0.03 |
| Dec | 0.79 | 0.80 | -0.01 |
27.50 | 27.73 | -0.23 |