| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.74 | 0.03 |
| Feb | 0.79 | 0.82 | -0.03 |
| Mar | 1.54 | 1.48 | 0.06 |
| Apr | 2.80 | 2.82 | -0.02 |
| May | 4.07 | 3.96 | 0.11 |
| Jun | 4.18 | 4.32 | -0.14 |
| Jul | 4.37 | 4.26 | 0.11 |
| Aug | 3.97 | 4.03 | -0.06 |
| Sep | 3.35 | 3.23 | 0.12 |
| Oct | 2.84 | 2.84 | 0.00 |
| Nov | 1.59 | 1.57 | 0.02 |
| Dec | 1.09 | 1.09 | 0.00 |
31.36 | 31.16 | 0.20 |