| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.69 | 0.02 |
| Feb | 0.78 | 0.77 | 0.01 |
| Mar | 1.45 | 1.46 | -0.01 |
| Apr | 2.56 | 2.57 | -0.01 |
| May | 3.50 | 3.58 | -0.08 |
| Jun | 4.34 | 4.37 | -0.03 |
| Jul | 4.03 | 3.95 | 0.08 |
| Aug | 3.83 | 3.82 | 0.01 |
| Sep | 2.90 | 2.95 | -0.05 |
| Oct | 2.51 | 2.53 | -0.02 |
| Nov | 1.34 | 1.28 | 0.06 |
| Dec | 0.89 | 0.90 | -0.01 |
28.84 | 28.87 | -0.03 |