| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.79 | 1.59 | 0.20 |
| Feb | 1.68 | 1.38 | 0.30 |
| Mar | 1.26 | 1.31 | -0.05 |
| Apr | 1.07 | 1.02 | 0.05 |
| May | 1.19 | 1.14 | 0.05 |
| Jun | 0.56 | 0.54 | 0.02 |
| Jul | 2.00 | 1.70 | 0.30 |
| Aug | 2.32 | 2.04 | 0.28 |
| Sep | 2.18 | 1.75 | 0.43 |
| Oct | 1.70 | 1.49 | 0.21 |
| Nov | 1.39 | 1.21 | 0.18 |
| Dec | 1.63 | 1.34 | 0.29 |
18.77 | 16.51 | 2.26 |