| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.58 | 1.82 | -0.24 |
| Feb | 1.49 | 1.76 | -0.27 |
| Mar | 1.37 | 1.54 | -0.17 |
| Apr | 1.24 | 1.29 | -0.05 |
| May | 1.20 | 1.43 | -0.23 |
| Jun | 0.63 | 0.70 | -0.07 |
| Jul | 1.88 | 2.07 | -0.19 |
| Aug | 2.17 | 2.53 | -0.36 |
| Sep | 1.86 | 2.07 | -0.21 |
| Oct | 1.51 | 1.74 | -0.23 |
| Nov | 1.36 | 1.58 | -0.22 |
| Dec | 1.54 | 1.81 | -0.27 |
17.83 | 20.34 | -2.51 |