| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.72 | 3.98 | -0.26 |
| Feb | 3.21 | 3.43 | -0.22 |
| Mar | 4.68 | 4.95 | -0.27 |
| Apr | 4.20 | 4.50 | -0.30 |
| May | 3.50 | 3.52 | -0.02 |
| Jun | 3.76 | 3.98 | -0.22 |
| Jul | 3.22 | 3.39 | -0.17 |
| Aug | 3.70 | 3.96 | -0.26 |
| Sep | 3.94 | 4.21 | -0.27 |
| Oct | 4.64 | 4.69 | -0.05 |
| Nov | 3.86 | 4.10 | -0.24 |
| Dec | 4.59 | 4.90 | -0.31 |
47.02 | 49.61 | -2.59 |