| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.82 | 3.89 | -0.07 |
| Feb | 3.47 | 3.54 | -0.07 |
| Mar | 4.08 | 4.06 | 0.02 |
| Apr | 3.13 | 3.15 | -0.02 |
| May | 3.19 | 3.16 | 0.03 |
| Jun | 4.15 | 4.24 | -0.09 |
| Jul | 3.86 | 4.02 | -0.16 |
| Aug | 4.20 | 4.46 | -0.26 |
| Sep | 3.84 | 3.93 | -0.09 |
| Oct | 3.30 | 3.31 | -0.01 |
| Nov | 3.26 | 3.31 | -0.05 |
| Dec | 4.09 | 4.06 | 0.03 |
44.39 | 45.13 | -0.74 |