| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.79 | 0.77 | 0.02 |
| Feb | 0.82 | 0.85 | -0.03 |
| Mar | 1.46 | 1.49 | -0.03 |
| Apr | 2.65 | 2.67 | -0.02 |
| May | 3.56 | 3.58 | -0.02 |
| Jun | 4.47 | 4.43 | 0.04 |
| Jul | 4.45 | 4.53 | -0.08 |
| Aug | 3.84 | 3.97 | -0.13 |
| Sep | 3.22 | 3.36 | -0.14 |
| Oct | 3.04 | 3.05 | -0.01 |
| Nov | 1.58 | 1.60 | -0.02 |
| Dec | 1.13 | 1.20 | -0.07 |
31.01 | 31.50 | -0.49 |