| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.64 | 2.92 | -0.28 |
| Feb | 2.09 | 2.30 | -0.21 |
| Mar | 2.52 | 2.72 | -0.20 |
| Apr | 3.29 | 3.38 | -0.09 |
| May | 3.24 | 3.12 | 0.12 |
| Jun | 3.27 | 3.32 | -0.05 |
| Jul | 3.40 | 3.33 | 0.07 |
| Aug | 3.10 | 3.01 | 0.09 |
| Sep | 3.67 | 3.60 | 0.07 |
| Oct | 3.54 | 3.65 | -0.11 |
| Nov | 3.05 | 3.09 | -0.04 |
| Dec | 3.01 | 3.18 | -0.17 |
36.82 | 37.62 | -0.80 |