| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.60 | 2.87 | -0.27 |
| Feb | 2.08 | 2.04 | 0.04 |
| Mar | 2.40 | 2.57 | -0.17 |
| Apr | 3.04 | 3.27 | -0.23 |
| May | 3.23 | 3.42 | -0.19 |
| Jun | 3.39 | 3.38 | 0.01 |
| Jul | 3.73 | 3.69 | 0.04 |
| Aug | 3.40 | 3.45 | -0.05 |
| Sep | 3.88 | 4.10 | -0.22 |
| Oct | 4.06 | 4.54 | -0.48 |
| Nov | 3.29 | 3.71 | -0.42 |
| Dec | 3.25 | 3.54 | -0.29 |
38.35 | 40.58 | -2.23 |