| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.63 | -0.23 |
| Feb | 3.30 | 3.46 | -0.16 |
| Mar | 3.63 | 3.82 | -0.19 |
| Apr | 3.15 | 3.45 | -0.30 |
| May | 3.86 | 3.86 | 0.00 |
| Jun | 4.72 | 4.77 | -0.05 |
| Jul | 6.12 | 6.01 | 0.11 |
| Aug | 6.70 | 6.89 | -0.19 |
| Sep | 6.68 | 7.46 | -0.78 |
| Oct | 4.38 | 4.55 | -0.17 |
| Nov | 3.39 | 3.41 | -0.02 |
| Dec | 3.57 | 3.79 | -0.22 |
52.90 | 55.10 | -2.20 |