| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.38 | 3.59 | -0.21 |
| Feb | 3.14 | 3.41 | -0.27 |
| Mar | 3.98 | 3.95 | 0.03 |
| Apr | 4.26 | 4.43 | -0.17 |
| May | 3.58 | 3.62 | -0.04 |
| Jun | 4.45 | 4.72 | -0.27 |
| Jul | 3.55 | 3.75 | -0.20 |
| Aug | 3.48 | 3.48 | 0.00 |
| Sep | 3.94 | 4.00 | -0.06 |
| Oct | 5.24 | 5.48 | -0.24 |
| Nov | 4.43 | 4.41 | 0.02 |
| Dec | 4.28 | 4.65 | -0.37 |
47.71 | 49.49 | -1.78 |