| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.02 | 0.88 | 0.14 |
| Feb | 1.06 | 0.89 | 0.17 |
| Mar | 1.18 | 1.15 | 0.03 |
| Apr | 1.70 | 1.92 | -0.22 |
| May | 2.34 | 2.77 | -0.43 |
| Jun | 2.59 | 2.85 | -0.26 |
| Jul | 1.13 | 1.52 | -0.39 |
| Aug | 1.06 | 1.29 | -0.23 |
| Sep | 1.27 | 1.53 | -0.26 |
| Oct | 1.31 | 1.40 | -0.09 |
| Nov | 1.19 | 1.10 | 0.09 |
| Dec | 1.20 | 0.93 | 0.27 |
17.05 | 18.23 | -1.18 |