| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.51 | 0.04 |
| Feb | 2.79 | 2.73 | 0.06 |
| Mar | 4.20 | 4.24 | -0.04 |
| Apr | 3.59 | 3.68 | -0.09 |
| May | 3.96 | 3.94 | 0.02 |
| Jun | 4.31 | 4.43 | -0.12 |
| Jul | 4.86 | 4.80 | 0.06 |
| Aug | 4.32 | 4.41 | -0.09 |
| Sep | 3.96 | 4.05 | -0.09 |
| Oct | 4.13 | 3.91 | 0.22 |
| Nov | 3.32 | 3.28 | 0.04 |
| Dec | 4.28 | 4.29 | -0.01 |
47.27 | 47.27 | 0.00 |