| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.07 | 3.18 | -0.11 |
| Feb | 2.40 | 2.46 | -0.06 |
| Mar | 3.47 | 3.48 | -0.01 |
| Apr | 4.37 | 4.32 | 0.05 |
| May | 4.44 | 4.45 | -0.01 |
| Jun | 4.70 | 4.73 | -0.03 |
| Jul | 4.11 | 3.99 | 0.12 |
| Aug | 3.19 | 2.94 | 0.25 |
| Sep | 3.05 | 3.10 | -0.05 |
| Oct | 3.07 | 3.04 | 0.03 |
| Nov | 2.99 | 2.97 | 0.02 |
| Dec | 3.13 | 3.15 | -0.02 |
41.99 | 41.81 | 0.18 |