| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.82 | 2.72 | 0.10 |
| Feb | 2.19 | 2.12 | 0.07 |
| Mar | 3.10 | 2.96 | 0.14 |
| Apr | 2.81 | 2.91 | -0.10 |
| May | 4.35 | 4.60 | -0.25 |
| Jun | 4.28 | 4.30 | -0.02 |
| Jul | 3.12 | 3.40 | -0.28 |
| Aug | 3.15 | 3.17 | -0.02 |
| Sep | 4.62 | 4.76 | -0.14 |
| Oct | 3.91 | 3.87 | 0.04 |
| Nov | 2.99 | 3.02 | -0.03 |
| Dec | 2.48 | 2.54 | -0.06 |
39.82 | 40.37 | -0.55 |