| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.50 | 4.81 | -0.31 |
| Feb | 4.76 | 5.00 | -0.24 |
| Mar | 4.76 | 5.20 | -0.44 |
| Apr | 4.11 | 4.48 | -0.37 |
| May | 3.34 | 3.29 | 0.05 |
| Jun | 5.75 | 5.41 | 0.34 |
| Jul | 7.11 | 6.56 | 0.55 |
| Aug | 7.48 | 7.31 | 0.17 |
| Sep | 5.79 | 5.82 | -0.03 |
| Oct | 3.57 | 3.76 | -0.19 |
| Nov | 3.63 | 3.98 | -0.35 |
| Dec | 4.62 | 4.79 | -0.17 |
59.42 | 60.41 | -0.99 |