| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.77 | 4.97 | -0.20 |
| Feb | 4.86 | 4.99 | -0.13 |
| Mar | 5.07 | 5.35 | -0.28 |
| Apr | 4.30 | 4.48 | -0.18 |
| May | 3.37 | 3.69 | -0.32 |
| Jun | 4.62 | 4.42 | 0.20 |
| Jul | 4.91 | 4.90 | 0.01 |
| Aug | 4.42 | 4.35 | 0.07 |
| Sep | 3.69 | 3.68 | 0.01 |
| Oct | 3.10 | 3.43 | -0.33 |
| Nov | 4.08 | 4.05 | 0.03 |
| Dec | 5.10 | 5.21 | -0.11 |
52.29 | 53.52 | -1.23 |