| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.30 | 0.46 | -0.16 |
| Feb | 0.35 | 0.52 | -0.17 |
| Mar | 0.63 | 1.14 | -0.51 |
| Apr | 1.44 | 1.93 | -0.49 |
| May | 1.92 | 2.21 | -0.29 |
| Jun | 1.93 | 2.24 | -0.31 |
| Jul | 3.14 | 3.09 | 0.05 |
| Aug | 2.54 | 3.57 | -1.03 |
| Sep | 1.26 | 1.61 | -0.35 |
| Oct | 0.82 | 0.84 | -0.02 |
| Nov | 0.49 | 0.66 | -0.17 |
| Dec | 0.29 | 0.49 | -0.20 |
15.11 | 18.76 | -3.65 |