| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.66 | -0.09 |
| Feb | 2.95 | 2.98 | -0.03 |
| Mar | 4.34 | 4.42 | -0.08 |
| Apr | 3.45 | 3.57 | -0.12 |
| May | 3.57 | 3.62 | -0.05 |
| Jun | 3.99 | 4.07 | -0.08 |
| Jul | 4.94 | 4.87 | 0.07 |
| Aug | 4.65 | 4.70 | -0.05 |
| Sep | 3.83 | 4.00 | -0.17 |
| Oct | 3.98 | 4.08 | -0.10 |
| Nov | 3.31 | 3.29 | 0.02 |
| Dec | 4.36 | 4.51 | -0.15 |
46.94 | 47.77 | -0.83 |