| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.67 | -0.02 |
| Feb | 0.65 | 0.69 | -0.04 |
| Mar | 1.21 | 1.24 | -0.03 |
| Apr | 2.13 | 2.21 | -0.08 |
| May | 3.34 | 3.41 | -0.07 |
| Jun | 4.24 | 4.25 | -0.01 |
| Jul | 4.31 | 4.24 | 0.07 |
| Aug | 3.38 | 3.17 | 0.21 |
| Sep | 2.92 | 2.87 | 0.05 |
| Oct | 2.66 | 2.71 | -0.05 |
| Nov | 1.19 | 1.16 | 0.03 |
| Dec | 0.87 | 0.91 | -0.04 |
27.55 | 27.53 | 0.02 |