| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.96 | 2.16 | -0.20 |
| Feb | 1.80 | 1.84 | -0.04 |
| Mar | 1.51 | 1.54 | -0.03 |
| Apr | 1.32 | 1.27 | 0.05 |
| May | 1.21 | 1.34 | -0.13 |
| Jun | 0.70 | 0.93 | -0.23 |
| Jul | 1.82 | 2.22 | -0.40 |
| Aug | 2.38 | 2.72 | -0.34 |
| Sep | 2.19 | 2.35 | -0.16 |
| Oct | 1.83 | 1.73 | 0.10 |
| Nov | 1.59 | 1.77 | -0.18 |
| Dec | 1.82 | 1.86 | -0.04 |
20.13 | 21.73 | -1.60 |