| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.35 | 0.36 | -0.01 |
| Feb | 0.53 | 0.51 | 0.02 |
| Mar | 1.07 | 0.98 | 0.09 |
| Apr | 2.17 | 2.10 | 0.07 |
| May | 4.05 | 3.79 | 0.26 |
| Jun | 3.21 | 3.06 | 0.15 |
| Jul | 2.54 | 2.32 | 0.22 |
| Aug | 1.77 | 1.82 | -0.05 |
| Sep | 1.44 | 1.37 | 0.07 |
| Oct | 1.56 | 1.58 | -0.02 |
| Nov | 0.57 | 0.54 | 0.03 |
| Dec | 0.40 | 0.40 | 0.00 |
19.66 | 18.83 | 0.83 |