| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.78 | 4.67 | 0.11 |
| Feb | 4.70 | 4.55 | 0.15 |
| Mar | 4.89 | 4.84 | 0.05 |
| Apr | 3.98 | 4.04 | -0.06 |
| May | 4.11 | 3.82 | 0.29 |
| Jun | 4.45 | 4.57 | -0.12 |
| Jul | 4.19 | 4.06 | 0.13 |
| Aug | 4.91 | 4.57 | 0.34 |
| Sep | 4.06 | 4.01 | 0.05 |
| Oct | 3.73 | 3.65 | 0.08 |
| Nov | 4.05 | 3.96 | 0.09 |
| Dec | 4.62 | 4.57 | 0.05 |
52.47 | 51.31 | 1.16 |