| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.88 | 0.92 | -0.04 |
| Feb | 1.08 | 1.19 | -0.11 |
| Mar | 1.93 | 2.03 | -0.10 |
| Apr | 2.72 | 2.96 | -0.24 |
| May | 2.59 | 2.66 | -0.07 |
| Jun | 1.67 | 1.83 | -0.16 |
| Jul | 2.21 | 2.69 | -0.48 |
| Aug | 2.17 | 2.27 | -0.10 |
| Sep | 1.64 | 1.74 | -0.10 |
| Oct | 1.30 | 1.38 | -0.08 |
| Nov | 1.07 | 1.09 | -0.02 |
| Dec | 0.82 | 1.01 | -0.19 |
20.08 | 21.77 | -1.69 |