| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.44 | 0.00 |
| Feb | 3.08 | 3.06 | 0.02 |
| Mar | 4.15 | 4.20 | -0.05 |
| Apr | 3.35 | 3.42 | -0.07 |
| May | 3.51 | 3.51 | 0.00 |
| Jun | 3.80 | 3.82 | -0.02 |
| Jul | 4.28 | 4.15 | 0.13 |
| Aug | 4.43 | 4.74 | -0.31 |
| Sep | 4.32 | 4.64 | -0.32 |
| Oct | 3.95 | 4.10 | -0.15 |
| Nov | 3.17 | 3.20 | -0.03 |
| Dec | 3.74 | 3.97 | -0.23 |
45.22 | 46.25 | -1.03 |