| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.69 | 0.06 |
| Feb | 0.78 | 0.75 | 0.03 |
| Mar | 1.62 | 1.60 | 0.02 |
| Apr | 3.22 | 3.19 | 0.03 |
| May | 4.43 | 4.40 | 0.03 |
| Jun | 4.93 | 4.73 | 0.20 |
| Jul | 3.77 | 3.82 | -0.05 |
| Aug | 3.69 | 3.68 | 0.01 |
| Sep | 3.10 | 3.07 | 0.03 |
| Oct | 2.37 | 2.26 | 0.11 |
| Nov | 1.43 | 1.31 | 0.12 |
| Dec | 0.98 | 0.89 | 0.09 |
31.07 | 30.39 | 0.68 |