| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.10 | 4.19 | -0.09 |
| Feb | 4.30 | 4.32 | -0.02 |
| Mar | 4.74 | 4.86 | -0.12 |
| Apr | 3.73 | 3.99 | -0.26 |
| May | 2.69 | 3.00 | -0.31 |
| Jun | 4.07 | 3.97 | 0.10 |
| Jul | 4.45 | 4.83 | -0.38 |
| Aug | 4.45 | 4.30 | 0.15 |
| Sep | 3.77 | 3.77 | 0.00 |
| Oct | 2.90 | 2.96 | -0.06 |
| Nov | 3.38 | 3.62 | -0.24 |
| Dec | 4.55 | 4.70 | -0.15 |
47.13 | 48.51 | -1.38 |