| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.15 | 4.41 | -0.26 |
| Feb | 3.67 | 3.87 | -0.20 |
| Mar | 4.11 | 4.43 | -0.32 |
| Apr | 3.16 | 3.36 | -0.20 |
| May | 3.36 | 3.40 | -0.04 |
| Jun | 4.90 | 5.26 | -0.36 |
| Jul | 4.96 | 5.04 | -0.08 |
| Aug | 4.84 | 5.10 | -0.26 |
| Sep | 3.95 | 4.20 | -0.25 |
| Oct | 2.75 | 2.90 | -0.15 |
| Nov | 2.98 | 3.16 | -0.18 |
| Dec | 4.09 | 4.21 | -0.12 |
46.92 | 49.34 | -2.42 |