| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.15 | 4.30 | -0.15 |
| Feb | 4.32 | 4.15 | 0.17 |
| Mar | 4.81 | 4.79 | 0.02 |
| Apr | 4.60 | 4.61 | -0.01 |
| May | 4.90 | 4.94 | -0.04 |
| Jun | 5.20 | 4.88 | 0.32 |
| Jul | 5.31 | 5.18 | 0.13 |
| Aug | 4.04 | 3.98 | 0.06 |
| Sep | 3.59 | 3.50 | 0.09 |
| Oct | 3.30 | 3.18 | 0.12 |
| Nov | 3.68 | 3.40 | 0.28 |
| Dec | 4.77 | 4.96 | -0.19 |
52.67 | 51.87 | 0.80 |