| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.51 | 0.42 | 0.09 |
| Feb | 0.65 | 0.57 | 0.08 |
| Mar | 1.07 | 1.01 | 0.06 |
| Apr | 1.97 | 2.12 | -0.15 |
| May | 3.51 | 3.46 | 0.05 |
| Jun | 2.96 | 3.10 | -0.14 |
| Jul | 2.05 | 2.10 | -0.05 |
| Aug | 1.57 | 1.62 | -0.05 |
| Sep | 1.25 | 1.22 | 0.03 |
| Oct | 1.53 | 1.71 | -0.18 |
| Nov | 0.66 | 0.61 | 0.05 |
| Dec | 0.53 | 0.51 | 0.02 |
18.26 | 18.45 | -0.19 |