| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.78 | -0.21 |
| Feb | 3.09 | 3.31 | -0.22 |
| Mar | 4.26 | 4.36 | -0.10 |
| Apr | 4.26 | 4.44 | -0.18 |
| May | 3.92 | 4.06 | -0.14 |
| Jun | 4.47 | 4.52 | -0.05 |
| Jul | 4.26 | 4.22 | 0.04 |
| Aug | 4.19 | 4.45 | -0.26 |
| Sep | 4.56 | 4.60 | -0.04 |
| Oct | 4.73 | 4.81 | -0.08 |
| Nov | 3.99 | 3.98 | 0.01 |
| Dec | 4.34 | 4.56 | -0.22 |
49.64 | 51.09 | -1.45 |