| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.72 | 4.80 | -0.08 |
| Feb | 4.77 | 4.90 | -0.13 |
| Mar | 4.86 | 4.99 | -0.13 |
| Apr | 4.04 | 4.30 | -0.26 |
| May | 3.89 | 3.99 | -0.10 |
| Jun | 4.22 | 4.17 | 0.05 |
| Jul | 4.90 | 4.92 | -0.02 |
| Aug | 4.03 | 4.14 | -0.11 |
| Sep | 3.89 | 4.05 | -0.16 |
| Oct | 3.40 | 3.45 | -0.05 |
| Nov | 4.11 | 4.28 | -0.17 |
| Dec | 4.62 | 4.72 | -0.10 |
51.45 | 52.71 | -1.26 |