| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.84 | 1.80 | 0.04 |
| Feb | 1.35 | 1.31 | 0.04 |
| Mar | 1.27 | 1.32 | -0.05 |
| Apr | 1.34 | 1.47 | -0.13 |
| May | 1.80 | 1.98 | -0.18 |
| Jun | 2.75 | 2.99 | -0.24 |
| Jul | 1.15 | 1.23 | -0.08 |
| Aug | 0.88 | 0.95 | -0.07 |
| Sep | 1.21 | 1.25 | -0.04 |
| Oct | 1.55 | 1.48 | 0.07 |
| Nov | 1.90 | 1.80 | 0.10 |
| Dec | 1.90 | 1.97 | -0.07 |
18.94 | 19.55 | -0.61 |