| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.70 | -0.01 |
| Feb | 0.96 | 0.99 | -0.03 |
| Mar | 1.82 | 1.81 | 0.01 |
| Apr | 2.89 | 2.84 | 0.05 |
| May | 4.72 | 4.71 | 0.01 |
| Jun | 4.53 | 4.54 | -0.01 |
| Jul | 4.29 | 4.32 | -0.03 |
| Aug | 3.90 | 4.01 | -0.11 |
| Sep | 2.85 | 2.81 | 0.04 |
| Oct | 2.28 | 2.26 | 0.02 |
| Nov | 1.40 | 1.45 | -0.05 |
| Dec | 1.11 | 1.09 | 0.02 |
31.44 | 31.53 | -0.09 |