| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.42 | 0.46 | -0.04 |
| Feb | 0.51 | 0.51 | 0.00 |
| Mar | 1.00 | 1.20 | -0.20 |
| Apr | 1.94 | 2.00 | -0.06 |
| May | 2.34 | 2.32 | 0.02 |
| Jun | 2.18 | 2.13 | 0.05 |
| Jul | 3.31 | 3.05 | 0.26 |
| Aug | 2.77 | 3.12 | -0.35 |
| Sep | 1.33 | 1.40 | -0.07 |
| Oct | 1.01 | 1.08 | -0.07 |
| Nov | 0.66 | 0.68 | -0.02 |
| Dec | 0.43 | 0.57 | -0.14 |
17.90 | 18.52 | -0.62 |