| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.68 | 4.73 | -0.05 |
| Feb | 4.75 | 4.85 | -0.10 |
| Mar | 5.09 | 5.19 | -0.10 |
| Apr | 4.35 | 4.35 | 0.00 |
| May | 3.86 | 3.93 | -0.07 |
| Jun | 3.90 | 4.16 | -0.26 |
| Jul | 4.22 | 4.54 | -0.32 |
| Aug | 3.70 | 3.98 | -0.28 |
| Sep | 3.66 | 3.75 | -0.09 |
| Oct | 3.36 | 3.49 | -0.13 |
| Nov | 4.11 | 4.20 | -0.09 |
| Dec | 4.83 | 4.86 | -0.03 |
50.51 | 52.03 | -1.52 |