| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.59 | 0.61 | -0.02 |
| Feb | 0.83 | 0.79 | 0.04 |
| Mar | 1.46 | 1.43 | 0.03 |
| Apr | 2.94 | 2.93 | 0.01 |
| May | 3.89 | 3.84 | 0.05 |
| Jun | 4.65 | 4.41 | 0.24 |
| Jul | 3.38 | 3.37 | 0.01 |
| Aug | 3.32 | 3.30 | 0.02 |
| Sep | 3.01 | 2.80 | 0.21 |
| Oct | 2.31 | 2.30 | 0.01 |
| Nov | 1.23 | 1.24 | -0.01 |
| Dec | 0.87 | 0.87 | 0.00 |
28.48 | 27.89 | 0.59 |