| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.40 | 0.40 | 0.00 |
| Feb | 0.50 | 0.53 | -0.03 |
| Mar | 0.96 | 0.97 | -0.01 |
| Apr | 2.05 | 2.08 | -0.03 |
| May | 2.91 | 2.99 | -0.08 |
| Jun | 3.06 | 3.08 | -0.02 |
| Jul | 3.33 | 3.22 | 0.11 |
| Aug | 2.89 | 2.86 | 0.03 |
| Sep | 1.49 | 1.49 | 0.00 |
| Oct | 1.50 | 1.51 | -0.01 |
| Nov | 0.69 | 0.66 | 0.03 |
| Dec | 0.50 | 0.51 | -0.01 |
20.28 | 20.30 | -0.02 |