| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.67 | 0.55 | 0.12 |
| Feb | 0.74 | 0.55 | 0.19 |
| Mar | 1.48 | 1.36 | 0.12 |
| Apr | 2.30 | 2.11 | 0.19 |
| May | 2.37 | 2.48 | -0.11 |
| Jun | 1.96 | 1.65 | 0.31 |
| Jul | 3.16 | 2.82 | 0.34 |
| Aug | 2.84 | 3.04 | -0.20 |
| Sep | 1.55 | 1.65 | -0.10 |
| Oct | 1.09 | 0.85 | 0.24 |
| Nov | 0.81 | 0.83 | -0.02 |
| Dec | 0.65 | 0.51 | 0.14 |
19.62 | 18.40 | 1.22 |