| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.61 | 4.74 | -0.13 |
| Feb | 4.40 | 4.56 | -0.16 |
| Mar | 4.90 | 5.03 | -0.13 |
| Apr | 3.73 | 3.95 | -0.22 |
| May | 2.79 | 2.71 | 0.08 |
| Jun | 5.43 | 5.51 | -0.08 |
| Jul | 5.50 | 5.81 | -0.31 |
| Aug | 4.99 | 5.26 | -0.27 |
| Sep | 4.29 | 4.23 | 0.06 |
| Oct | 2.70 | 2.84 | -0.14 |
| Nov | 3.16 | 3.26 | -0.10 |
| Dec | 4.27 | 4.35 | -0.08 |
50.77 | 52.25 | -1.48 |