| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.87 | -0.12 |
| Feb | 0.78 | 0.86 | -0.08 |
| Mar | 1.55 | 1.62 | -0.07 |
| Apr | 2.85 | 3.04 | -0.19 |
| May | 4.15 | 4.31 | -0.16 |
| Jun | 4.52 | 4.55 | -0.03 |
| Jul | 4.22 | 4.24 | -0.02 |
| Aug | 4.28 | 4.15 | 0.13 |
| Sep | 3.19 | 3.25 | -0.06 |
| Oct | 2.89 | 2.77 | 0.12 |
| Nov | 1.59 | 1.65 | -0.06 |
| Dec | 1.05 | 1.25 | -0.20 |
31.82 | 32.56 | -0.74 |