| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 7.90 | 7.85 | 0.05 |
| Feb | 6.70 | 6.48 | 0.22 |
| Mar | 6.62 | 6.81 | -0.19 |
| Apr | 4.17 | 4.44 | -0.27 |
| May | 2.06 | 2.12 | -0.06 |
| Jun | 0.84 | 0.97 | -0.13 |
| Jul | 0.16 | 0.20 | -0.04 |
| Aug | 0.19 | 0.23 | -0.04 |
| Sep | 0.75 | 0.83 | -0.08 |
| Oct | 2.77 | 2.88 | -0.11 |
| Nov | 5.67 | 5.57 | 0.10 |
| Dec | 9.51 | 9.40 | 0.11 |
47.34 | 47.78 | -0.44 |