| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.63 | 3.78 | -0.15 |
| Feb | 3.93 | 4.00 | -0.07 |
| Mar | 4.79 | 4.84 | -0.05 |
| Apr | 5.17 | 5.19 | -0.02 |
| May | 5.40 | 5.11 | 0.29 |
| Jun | 3.50 | 3.50 | 0.00 |
| Jul | 4.02 | 3.93 | 0.09 |
| Aug | 3.63 | 3.52 | 0.11 |
| Sep | 3.31 | 3.31 | 0.00 |
| Oct | 3.83 | 4.18 | -0.35 |
| Nov | 4.44 | 4.64 | -0.20 |
| Dec | 4.42 | 4.61 | -0.19 |
50.07 | 50.61 | -0.54 |