| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.43 | 0.43 | 0.00 |
| Feb | 0.50 | 0.54 | -0.04 |
| Mar | 1.20 | 1.32 | -0.12 |
| Apr | 2.05 | 2.11 | -0.06 |
| May | 2.57 | 2.83 | -0.26 |
| Jun | 1.77 | 1.84 | -0.07 |
| Jul | 1.57 | 1.68 | -0.11 |
| Aug | 1.42 | 1.53 | -0.11 |
| Sep | 1.35 | 1.42 | -0.07 |
| Oct | 1.15 | 1.26 | -0.11 |
| Nov | 0.74 | 0.79 | -0.05 |
| Dec | 0.47 | 0.51 | -0.04 |
15.22 | 16.26 | -1.04 |