| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.15 | 4.39 | -0.24 |
| Feb | 3.67 | 3.86 | -0.19 |
| Mar | 4.11 | 4.42 | -0.31 |
| Apr | 3.16 | 3.35 | -0.19 |
| May | 3.36 | 3.39 | -0.03 |
| Jun | 4.90 | 5.25 | -0.35 |
| Jul | 4.96 | 5.03 | -0.07 |
| Aug | 4.84 | 5.09 | -0.25 |
| Sep | 3.95 | 4.20 | -0.25 |
| Oct | 2.75 | 2.90 | -0.15 |
| Nov | 2.98 | 3.16 | -0.18 |
| Dec | 4.09 | 4.20 | -0.11 |
46.92 | 49.24 | -2.32 |