| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.50 | -0.06 |
| Feb | 3.25 | 3.30 | -0.05 |
| Mar | 4.48 | 4.53 | -0.05 |
| Apr | 5.32 | 5.35 | -0.03 |
| May | 5.20 | 5.42 | -0.22 |
| Jun | 4.48 | 4.57 | -0.09 |
| Jul | 4.09 | 4.12 | -0.03 |
| Aug | 3.15 | 3.11 | 0.04 |
| Sep | 3.28 | 3.35 | -0.07 |
| Oct | 3.72 | 3.68 | 0.04 |
| Nov | 4.38 | 4.45 | -0.07 |
| Dec | 3.70 | 3.89 | -0.19 |
48.49 | 49.27 | -0.78 |