| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.40 | 0.41 | -0.01 |
| Feb | 0.51 | 0.55 | -0.04 |
| Mar | 0.95 | 1.01 | -0.06 |
| Apr | 2.01 | 2.04 | -0.03 |
| May | 3.22 | 3.31 | -0.09 |
| Jun | 3.12 | 3.15 | -0.03 |
| Jul | 2.23 | 2.30 | -0.07 |
| Aug | 1.68 | 1.70 | -0.02 |
| Sep | 1.23 | 1.25 | -0.02 |
| Oct | 1.55 | 1.55 | 0.00 |
| Nov | 0.49 | 0.55 | -0.06 |
| Dec | 0.41 | 0.48 | -0.07 |
17.80 | 18.30 | -0.50 |