| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.95 | 4.10 | -0.15 |
| Feb | 3.69 | 3.82 | -0.13 |
| Mar | 2.83 | 3.08 | -0.25 |
| Apr | 1.50 | 1.69 | -0.19 |
| May | 1.11 | 0.89 | 0.22 |
| Jun | 0.23 | 0.22 | 0.01 |
| Jul | 0.01 | 0.00 | 0.01 |
| Aug | 0.02 | 0.03 | -0.01 |
| Sep | 0.08 | 0.12 | -0.04 |
| Oct | 0.93 | 1.04 | -0.11 |
| Nov | 1.91 | 1.95 | -0.04 |
| Dec | 3.36 | 3.81 | -0.45 |
19.62 | 20.75 | -1.13 |