| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.62 | 0.61 | 0.01 |
| Feb | 0.73 | 0.75 | -0.02 |
| Mar | 1.48 | 1.44 | 0.04 |
| Apr | 2.41 | 2.43 | -0.02 |
| May | 4.47 | 4.49 | -0.02 |
| Jun | 3.94 | 3.79 | 0.15 |
| Jul | 4.06 | 4.09 | -0.03 |
| Aug | 3.42 | 3.43 | -0.01 |
| Sep | 2.31 | 2.23 | 0.08 |
| Oct | 2.07 | 2.06 | 0.01 |
| Nov | 1.21 | 1.23 | -0.02 |
| Dec | 0.86 | 0.84 | 0.02 |
27.58 | 27.39 | 0.19 |