| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.81 | 0.96 | -0.15 |
| Feb | 0.80 | 0.98 | -0.18 |
| Mar | 1.62 | 1.77 | -0.15 |
| Apr | 2.90 | 3.04 | -0.14 |
| May | 4.08 | 4.32 | -0.24 |
| Jun | 4.75 | 4.98 | -0.23 |
| Jul | 4.15 | 4.37 | -0.22 |
| Aug | 4.51 | 4.53 | -0.02 |
| Sep | 3.32 | 3.35 | -0.03 |
| Oct | 2.62 | 2.72 | -0.10 |
| Nov | 1.54 | 1.70 | -0.16 |
| Dec | 1.15 | 1.31 | -0.16 |
32.25 | 34.03 | -1.78 |