| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.73 | 3.82 | -0.09 |
| Feb | 2.81 | 2.98 | -0.17 |
| Mar | 4.13 | 4.31 | -0.18 |
| Apr | 3.92 | 4.15 | -0.23 |
| May | 3.87 | 3.88 | -0.01 |
| Jun | 4.77 | 4.90 | -0.13 |
| Jul | 4.33 | 4.48 | -0.15 |
| Aug | 4.52 | 4.89 | -0.37 |
| Sep | 4.71 | 4.88 | -0.17 |
| Oct | 4.71 | 4.70 | 0.01 |
| Nov | 3.65 | 3.70 | -0.05 |
| Dec | 4.35 | 4.58 | -0.23 |
49.50 | 51.27 | -1.77 |