| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 11.70 | 12.60 | -0.90 |
| Feb | 8.62 | 9.31 | -0.69 |
| Mar | 8.98 | 9.74 | -0.76 |
| Apr | 6.26 | 7.06 | -0.80 |
| May | 3.68 | 4.26 | -0.58 |
| Jun | 2.43 | 2.85 | -0.42 |
| Jul | 0.56 | 0.77 | -0.21 |
| Aug | 0.70 | 0.82 | -0.12 |
| Sep | 2.18 | 2.43 | -0.25 |
| Oct | 6.27 | 6.54 | -0.27 |
| Nov | 10.83 | 11.95 | -1.12 |
| Dec | 12.89 | 16.12 | -3.23 |
75.10 | 84.45 | -9.35 |