| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.11 | 4.36 | -0.25 |
| Feb | 3.52 | 3.81 | -0.29 |
| Mar | 4.34 | 4.59 | -0.25 |
| Apr | 4.35 | 4.40 | -0.05 |
| May | 4.01 | 4.15 | -0.14 |
| Jun | 4.48 | 4.33 | 0.15 |
| Jul | 4.58 | 4.61 | -0.03 |
| Aug | 4.28 | 4.20 | 0.08 |
| Sep | 4.01 | 4.27 | -0.26 |
| Oct | 3.58 | 3.82 | -0.24 |
| Nov | 3.65 | 4.00 | -0.35 |
| Dec | 4.33 | 4.77 | -0.44 |
49.24 | 51.31 | -2.07 |