| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.73 | -0.04 |
| Feb | 0.78 | 0.85 | -0.07 |
| Mar | 1.41 | 1.43 | -0.02 |
| Apr | 2.73 | 2.82 | -0.09 |
| May | 3.95 | 4.08 | -0.13 |
| Jun | 4.53 | 4.44 | 0.09 |
| Jul | 3.84 | 3.88 | -0.04 |
| Aug | 4.00 | 4.28 | -0.28 |
| Sep | 3.26 | 3.27 | -0.01 |
| Oct | 2.52 | 2.56 | -0.04 |
| Nov | 1.41 | 1.45 | -0.04 |
| Dec | 0.99 | 1.06 | -0.07 |
30.11 | 30.85 | -0.74 |