| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.36 | 3.56 | -0.20 |
| Feb | 2.86 | 2.98 | -0.12 |
| Mar | 4.11 | 4.16 | -0.05 |
| Apr | 3.99 | 4.07 | -0.08 |
| May | 3.85 | 3.90 | -0.05 |
| Jun | 4.35 | 4.49 | -0.14 |
| Jul | 4.35 | 4.45 | -0.10 |
| Aug | 4.34 | 4.54 | -0.20 |
| Sep | 4.17 | 4.21 | -0.04 |
| Oct | 4.23 | 4.28 | -0.05 |
| Nov | 3.50 | 3.48 | 0.02 |
| Dec | 4.23 | 4.37 | -0.14 |
47.34 | 48.49 | -1.15 |