| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.93 | 3.33 | -0.40 |
| Feb | 2.13 | 2.38 | -0.25 |
| Mar | 2.12 | 2.41 | -0.29 |
| Apr | 1.83 | 2.33 | -0.50 |
| May | 1.54 | 1.81 | -0.27 |
| Jun | 0.80 | 0.97 | -0.17 |
| Jul | 0.34 | 0.41 | -0.07 |
| Aug | 0.30 | 0.32 | -0.02 |
| Sep | 0.52 | 0.64 | -0.12 |
| Oct | 1.38 | 1.82 | -0.44 |
| Nov | 2.82 | 3.32 | -0.50 |
| Dec | 3.74 | 4.41 | -0.67 |
20.45 | 24.15 | -3.70 |