| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.33 | 0.34 | -0.01 |
| Feb | 0.45 | 0.46 | -0.01 |
| Mar | 0.84 | 0.82 | 0.02 |
| Apr | 1.71 | 1.71 | 0.00 |
| May | 2.63 | 2.44 | 0.19 |
| Jun | 2.75 | 2.86 | -0.11 |
| Jul | 3.24 | 2.97 | 0.27 |
| Aug | 2.84 | 2.77 | 0.07 |
| Sep | 1.35 | 1.44 | -0.09 |
| Oct | 1.27 | 1.35 | -0.08 |
| Nov | 0.53 | 0.55 | -0.02 |
| Dec | 0.40 | 0.41 | -0.01 |
18.34 | 18.12 | 0.22 |