| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.21 | 4.09 | 0.12 |
| Feb | 4.13 | 3.91 | 0.22 |
| Mar | 3.14 | 3.10 | 0.04 |
| Apr | 1.82 | 1.72 | 0.10 |
| May | 1.12 | 0.94 | 0.18 |
| Jun | 0.24 | 0.24 | 0.00 |
| Jul | 0.01 | 0.00 | 0.01 |
| Aug | 0.02 | 0.03 | -0.01 |
| Sep | 0.09 | 0.13 | -0.04 |
| Oct | 1.00 | 1.06 | -0.06 |
| Nov | 2.03 | 1.98 | 0.05 |
| Dec | 3.54 | 3.83 | -0.29 |
21.35 | 21.03 | 0.32 |