| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.21 | 4.11 | 0.10 |
| Feb | 4.13 | 3.97 | 0.16 |
| Mar | 3.14 | 3.14 | 0.00 |
| Apr | 1.82 | 1.75 | 0.07 |
| May | 1.12 | 0.96 | 0.16 |
| Jun | 0.24 | 0.25 | -0.01 |
| Jul | 0.01 | 0.00 | 0.01 |
| Aug | 0.02 | 0.03 | -0.01 |
| Sep | 0.09 | 0.12 | -0.03 |
| Oct | 1.00 | 1.08 | -0.08 |
| Nov | 2.03 | 2.01 | 0.02 |
| Dec | 3.54 | 3.85 | -0.31 |
21.35 | 21.27 | 0.08 |