| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.42 | 0.17 |
| Feb | 3.32 | 3.21 | 0.11 |
| Mar | 2.95 | 2.78 | 0.17 |
| Apr | 0.90 | 0.79 | 0.11 |
| May | 0.39 | 0.36 | 0.03 |
| Jun | 0.04 | 0.05 | -0.01 |
| Jul | 0.02 | 0.07 | -0.05 |
| Aug | 0.01 | 0.02 | -0.01 |
| Sep | 0.08 | 0.07 | 0.01 |
| Oct | 0.72 | 0.56 | 0.16 |
| Nov | 1.22 | 1.14 | 0.08 |
| Dec | 2.63 | 2.50 | 0.13 |
15.87 | 14.97 | 0.90 |