| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.34 | 4.21 | 0.13 |
| Feb | 4.04 | 4.08 | -0.04 |
| Mar | 4.57 | 4.58 | -0.01 |
| Apr | 4.23 | 4.22 | 0.01 |
| May | 4.43 | 4.52 | -0.09 |
| Jun | 4.46 | 4.43 | 0.03 |
| Jul | 3.07 | 3.06 | 0.01 |
| Aug | 3.10 | 3.18 | -0.08 |
| Sep | 3.58 | 3.54 | 0.04 |
| Oct | 4.32 | 4.41 | -0.09 |
| Nov | 4.07 | 4.16 | -0.09 |
| Dec | 4.83 | 4.79 | 0.04 |
49.04 | 49.18 | -0.14 |