| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.50 | 2.89 | -0.39 |
| Feb | 1.99 | 2.17 | -0.18 |
| Mar | 2.16 | 2.40 | -0.24 |
| Apr | 3.47 | 3.54 | -0.07 |
| May | 4.01 | 4.18 | -0.17 |
| Jun | 3.93 | 3.93 | 0.00 |
| Jul | 3.51 | 3.61 | -0.10 |
| Aug | 3.73 | 4.00 | -0.27 |
| Sep | 3.25 | 3.36 | -0.11 |
| Oct | 3.84 | 4.09 | -0.25 |
| Nov | 2.78 | 2.99 | -0.21 |
| Dec | 2.37 | 2.72 | -0.35 |
37.54 | 39.88 | -2.34 |