| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.10 | 5.32 | -1.22 |
| Feb | 4.78 | 5.85 | -1.07 |
| Mar | 2.89 | 3.96 | -1.07 |
| Apr | 1.30 | 1.83 | -0.53 |
| May | 0.42 | 0.73 | -0.31 |
| Jun | 0.05 | 0.14 | -0.09 |
| Jul | 0.54 | 0.53 | 0.01 |
| Aug | 0.50 | 0.84 | -0.34 |
| Sep | 0.59 | 0.78 | -0.19 |
| Oct | 0.77 | 1.15 | -0.38 |
| Nov | 1.64 | 2.10 | -0.46 |
| Dec | 3.02 | 3.71 | -0.69 |
20.60 | 26.94 | -6.34 |