| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.66 | -0.25 |
| Feb | 2.95 | 3.04 | -0.09 |
| Mar | 4.16 | 4.28 | -0.12 |
| Apr | 3.79 | 3.95 | -0.16 |
| May | 3.80 | 3.92 | -0.12 |
| Jun | 4.15 | 4.52 | -0.37 |
| Jul | 4.37 | 4.41 | -0.04 |
| Aug | 4.24 | 4.36 | -0.12 |
| Sep | 3.87 | 3.95 | -0.08 |
| Oct | 4.06 | 4.09 | -0.03 |
| Nov | 3.35 | 3.35 | 0.00 |
| Dec | 4.20 | 4.39 | -0.19 |
46.35 | 47.92 | -1.57 |