| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.17 | 4.05 | 0.12 |
| Feb | 4.54 | 4.62 | -0.08 |
| Mar | 4.79 | 4.89 | -0.10 |
| Apr | 4.74 | 4.98 | -0.24 |
| May | 5.18 | 5.72 | -0.54 |
| Jun | 4.25 | 3.96 | 0.29 |
| Jul | 4.27 | 4.47 | -0.20 |
| Aug | 3.43 | 3.27 | 0.16 |
| Sep | 3.58 | 3.80 | -0.22 |
| Oct | 3.57 | 3.69 | -0.12 |
| Nov | 3.72 | 3.74 | -0.02 |
| Dec | 4.81 | 4.77 | 0.04 |
51.05 | 51.96 | -0.91 |