| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.10 | 4.45 | -0.35 |
| Feb | 3.58 | 3.86 | -0.28 |
| Mar | 3.64 | 3.66 | -0.02 |
| Apr | 3.47 | 3.67 | -0.20 |
| May | 4.21 | 4.31 | -0.10 |
| Jun | 5.05 | 4.89 | 0.16 |
| Jul | 6.36 | 6.55 | -0.19 |
| Aug | 7.22 | 7.50 | -0.28 |
| Sep | 7.67 | 8.25 | -0.58 |
| Oct | 4.29 | 5.12 | -0.83 |
| Nov | 3.82 | 4.47 | -0.65 |
| Dec | 3.99 | 4.26 | -0.27 |
57.40 | 60.99 | -3.59 |