| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.40 | 2.49 | -0.09 |
| Feb | 2.14 | 2.19 | -0.05 |
| Mar | 3.07 | 3.05 | 0.02 |
| Apr | 4.68 | 4.64 | 0.04 |
| May | 4.70 | 4.94 | -0.24 |
| Jun | 4.28 | 4.25 | 0.03 |
| Jul | 3.85 | 3.82 | 0.03 |
| Aug | 3.33 | 3.30 | 0.03 |
| Sep | 3.12 | 3.17 | -0.05 |
| Oct | 3.25 | 3.22 | 0.03 |
| Nov | 3.29 | 3.38 | -0.09 |
| Dec | 2.41 | 2.53 | -0.12 |
40.52 | 40.98 | -0.46 |