| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.25 | 4.35 | -0.10 |
| Feb | 3.71 | 3.85 | -0.14 |
| Mar | 4.30 | 4.43 | -0.13 |
| Apr | 3.21 | 3.33 | -0.12 |
| May | 3.40 | 3.35 | 0.05 |
| Jun | 4.90 | 5.17 | -0.27 |
| Jul | 4.96 | 4.92 | 0.04 |
| Aug | 4.95 | 5.01 | -0.06 |
| Sep | 3.97 | 4.15 | -0.18 |
| Oct | 2.94 | 2.89 | 0.05 |
| Nov | 3.08 | 3.19 | -0.11 |
| Dec | 4.30 | 4.24 | 0.06 |
47.97 | 48.88 | -0.91 |