| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.39 | 0.30 | 0.09 |
| Feb | 0.56 | 0.49 | 0.07 |
| Mar | 1.09 | 0.90 | 0.19 |
| Apr | 2.11 | 1.93 | 0.18 |
| May | 3.33 | 3.40 | -0.07 |
| Jun | 3.14 | 2.89 | 0.25 |
| Jul | 2.51 | 2.08 | 0.43 |
| Aug | 1.47 | 1.61 | -0.14 |
| Sep | 1.26 | 1.23 | 0.03 |
| Oct | 1.41 | 1.51 | -0.10 |
| Nov | 0.49 | 0.51 | -0.02 |
| Dec | 0.42 | 0.38 | 0.04 |
18.18 | 17.23 | 0.95 |