| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.75 | 4.77 | -0.02 |
| Feb | 4.75 | 4.82 | -0.07 |
| Mar | 4.83 | 4.89 | -0.06 |
| Apr | 4.04 | 4.15 | -0.11 |
| May | 3.86 | 3.99 | -0.13 |
| Jun | 4.26 | 4.21 | 0.05 |
| Jul | 4.98 | 5.19 | -0.21 |
| Aug | 4.07 | 4.27 | -0.20 |
| Sep | 3.85 | 4.00 | -0.15 |
| Oct | 3.43 | 3.52 | -0.09 |
| Nov | 4.09 | 4.26 | -0.17 |
| Dec | 4.64 | 4.69 | -0.05 |
51.55 | 52.76 | -1.21 |