| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.84 | 5.33 | -0.49 |
| Feb | 4.10 | 4.38 | -0.28 |
| Mar | 3.78 | 4.01 | -0.23 |
| Apr | 1.93 | 2.08 | -0.15 |
| May | 0.88 | 1.03 | -0.15 |
| Jun | 0.25 | 0.35 | -0.10 |
| Jul | 0.03 | 0.08 | -0.05 |
| Aug | 0.02 | 0.03 | -0.01 |
| Sep | 0.12 | 0.15 | -0.03 |
| Oct | 1.15 | 1.17 | -0.02 |
| Nov | 2.03 | 2.03 | 0.00 |
| Dec | 3.91 | 3.93 | -0.02 |
23.04 | 24.57 | -1.53 |