| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.34 | 3.57 | -0.23 |
| Feb | 2.92 | 3.01 | -0.09 |
| Mar | 3.61 | 3.77 | -0.16 |
| Apr | 3.41 | 3.49 | -0.08 |
| May | 3.24 | 3.49 | -0.25 |
| Jun | 4.44 | 4.49 | -0.05 |
| Jul | 5.09 | 5.13 | -0.04 |
| Aug | 4.50 | 4.90 | -0.40 |
| Sep | 4.74 | 5.17 | -0.43 |
| Oct | 3.25 | 3.45 | -0.20 |
| Nov | 3.36 | 3.37 | -0.01 |
| Dec | 3.30 | 3.44 | -0.14 |
45.20 | 47.28 | -2.08 |