| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.10 | 3.19 | -0.09 |
| Feb | 2.16 | 2.47 | -0.31 |
| Mar | 2.64 | 2.84 | -0.20 |
| Apr | 3.41 | 3.34 | 0.07 |
| May | 3.26 | 3.36 | -0.10 |
| Jun | 3.49 | 3.49 | 0.00 |
| Jul | 3.72 | 3.36 | 0.36 |
| Aug | 3.39 | 3.28 | 0.11 |
| Sep | 4.01 | 3.97 | 0.04 |
| Oct | 3.94 | 4.21 | -0.27 |
| Nov | 3.43 | 3.79 | -0.36 |
| Dec | 3.47 | 3.70 | -0.23 |
40.02 | 41.00 | -0.98 |