| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.02 | 0.99 | 0.03 |
| Feb | 0.94 | 0.82 | 0.12 |
| Mar | 1.06 | 1.06 | 0.00 |
| Apr | 1.94 | 2.00 | -0.06 |
| May | 2.94 | 2.94 | 0.00 |
| Jun | 3.97 | 3.95 | 0.02 |
| Jul | 3.89 | 4.06 | -0.17 |
| Aug | 3.02 | 3.13 | -0.11 |
| Sep | 3.53 | 3.60 | -0.07 |
| Oct | 2.72 | 2.74 | -0.02 |
| Nov | 1.76 | 1.53 | 0.23 |
| Dec | 1.39 | 1.28 | 0.11 |
28.18 | 28.10 | 0.08 |